Middle East

Assessing the Global Operating Environment

Middle East

Oct 5, 2017 About an hour read

The Middle East is geographically situated in a critical location. The Heritage Foundation

Strategically situated at the intersection of Europe, Asia, and Africa, the Middle East has long been an important focus of United States foreign policy. U.S. security relationships in the region are built on pragmatism, shared security concerns, and economic interests, including large sales of U.S. arms to countries in the region that are seeking to defend themselves. The U.S. also maintains a long-term interest in the Middle East that is related to the region’s economic importance as the world’s primary source of oil and gas.

The region is home to a wide array of cultures, religions, and ethnic groups, including Arabs, Jews, Kurds, Persians, and Turks, among others. It also is home to the three Abrahamic religions of Judaism, Christianity, and Islam, in addition to many smaller religions like the Bahá’í, Druze, Yazidi, and Zoroastrian faiths. The region contains many predominantly Muslim countries as well as the world’s only Jewish state.

The Middle East is deeply sectarian, and these long-standing divisions, exacerbated by religious extremists vying for power, are central to many of the challenges that the region faces today. In some cases, these sectarian divides go back centuries. Contemporary conflicts, however, have less to do with these histories than they do with modern extremist ideologies and the fact that modern-day borders often do not reflect the region’s cultural, ethnic, or religious realities. Today’s borders are often the results of decisions taken by the British, French, and other powers during and soon after World War I as they dismantled the Ottoman Empire.1

In a way not understood by many in the West, religion remains a prominent fact of daily life in the modern Middle East. At the heart of many of the region’s conflicts is the friction within Islam between Sunnis and Shias. This friction dates back to the death of the Prophet Muhammad in 632 AD.2 Sunni Muslims, who form the majority of the world’s Muslim population, hold power in most of the Arab countries in the Middle East.

Viewing the current instability in the Middle East through the lens of a Sunni–Shia conflict, however, does not show the full picture. The cultural and historical division between Persians and Arabs has reinforced the Sunni–Shia split. The mutual distrust of many Arab/Sunni powers and the Persian/Shia power (Iran), compounded by clashing national and ideological interests, has fueled instability, including in Bahrain, Iraq, Lebanon, Syria, and Yemen. Sunni extremist organizations such as al-Qaeda and the Islamic State have exploited sectarian and ethnic tensions to gain support by posing as champions of Sunni Arabs against Iran, Syria’s Alawite-dominated regime, and other non-Sunni governments and movements.

Current regional demographic trends also are destabilizing factors. The Middle East contains one of the world’s youngest and fastest-growing populations. In most of the West, this would be viewed as an advantage, but not in the Middle East. Known as “youth bulges,” these demographic tsunamis have overwhelmed the inadequate political, economic, and educational infrastructures in many countries, and the lack of access to education, jobs, and meaningful political participation fuels discontent. Because more than 60 percent of the region’s inhabitants are less than 25 years old, this demographic bulge will continue to have a substantial effect on political stability across the region.

The Middle East contains more than half of the world’s oil reserves and is the world’s chief oil-exporting region. As the world’s biggest oil consumer, the U.S. has a vested interest in maintaining the free flow of oil and gas from the region. This is true even though the U.S. actually imports relatively little of its oil from the Middle East.3 Oil is a fungible commodity, and the U.S. economy remains vulnerable to sudden spikes in world oil prices.

Because many U.S. allies depend on Middle East oil and gas, there is also a second-order effect for the U.S. if supply from the Middle East is reduced or compromised. For example, Japan (the world’s third largest economy) is the world’s largest liquefied natural gas (LNG) importer, accounting for 32 percent of the global market share of LNG demand.4 Qatar is the second largest supplier of LNG to Japan. In 2016, another U.S. ally in Asia—South Korea, the world’s 15th largest economy5—depended on the Middle East for 82 percent of its imports of crude oil.6 The U.S. itself might not be dependent on Middle East oil or LNG, but the economic consequences arising from a major disruption of supplies would ripple across the globe.

Financial and logistics hubs are also growing along some of the world’s busiest transcontinental trade routes. One of the region’s economic bright spots in terms of trade and commerce is found in the Persian Gulf. The emirates of Dubai and Abu Dhabi in the United Arab Emirates (UAE), along with Qatar, are competing to become the region’s top financial center. Although many oil-exporting countries recovered from the 2008 financial crisis and subsequent recession, they have since experienced the deepest economic downturn since the 1990s as a result of falling oil prices.7 Various factors such as weak demand, infighting within the Organization of the Petroleum Exporting Countries (OPEC), and increased U.S. domestic oil production have contributed to these plunging oil prices.8

Nevertheless, the Middle East is full of economic extremes. For example:

  • Qatar is the world’s wealthiest country in terms of gross domestic product (GDP) per capita; Yemen, a mere 700 miles away, ranks 198th.9
  • Saudi Arabia has 265 billion barrels of proven oil reserves. It shares a nearly 500-mile border with Jordan, which has just 1 million barrels of proven oil reserves.
  • According to the 2017 Index of Economic Freedom, published by The Heritage Foundation, the UAE ranks 8th in the world in terms of economic freedom; Iran, located just across the Persian Gulf, ranks 155th.10

These disparities are made worse by government corruption across most of the region, which not only squanders economic and human resources, but also restricts economic competition and hinders the development of free enterprise.

The economic situation is part of what drives the Middle East’s political environment. The lack of economic freedom was an important factor leading to the Arab Spring uprisings, which disrupted economic activity, depressed foreign and domestic investment, and slowed economic growth.

The political environment has a direct bearing on how easily the U.S. military can operate in a region. In many Middle Eastern countries, the political situation remains fraught with uncertainty. The Arab Spring uprisings that began in early 2011 formed a regional sandstorm that eroded the foundations of many authoritarian regimes, erased borders, and destabilized many countries in the region. Even so, the popular uprisings in Tunisia, Libya, Egypt, Bahrain, Syria, and Yemen did not usher in a new era of democracy and liberal rule, as many in the West were hoping. At best, these uprisings made slow progress toward democratic reform. At worst, they added to political instability, exacerbated economic problems, and contributed to the rise of Islamist extremists. Six years later, the economic and political outlooks remain bleak.11

There is no shortage of security challenges for the U.S. and its allies in this region. Iran has exacerbated Shia–Sunni tensions to increase its influence on embattled regimes and undermine adversaries in Sunni-led states. Tehran attempts to run an unconventional empire by exerting great influence on sub-state entities like Hamas (Palestinian territories); Hezbollah (Lebanon); the Mahdi movement (Iraq); and the Houthi insurgents (Yemen). In Afghanistan, Tehran’s influence on some Shiite groups is such that many have even volunteered to fight for Basher al-Assad in Syria.12 Iran also provided arms to the Taliban after it was ousted from power by a U.S.-led coalition13 and has long considered the Afghan city of Herat, near the Afghan–Iranian border, to be within its sphere of influence.

The Iran nuclear agreement has strengthened Tehran’s ability to establish regional hegemony. Tehran has recovered approximately $100 billion in frozen assets that will boost its economy and enhance its strategic position, military capabilities, and support for surrogate networks and terrorist groups.14 This economic transfusion will enable Tehran to tilt the regional balance of power even further in its favor.

Iran already looms large over weak and divided Arab rivals. Iraq and Syria have been destabilized by insurgencies and civil war and may never fully recover. Egypt is distracted by its own internal problems, economic imbalances, and the Islamist extremist insurgency in the Sinai Peninsula. Jordan has been inundated by a flood of Syrian refugees and is threatened by the spillover of Islamist extremist groups from Syria. Meanwhile, Tehran has continued to build up its missile arsenal (now the largest in the Middle East) and has increased its naval provocations in the Persian Gulf, intervened to prop up the Assad regime in Syria, and reinforced Shiite Islamist revolutionaries in Yemen and Bahrain.15

In Syria, the Assad regime’s brutal repression of peaceful demonstrations in early 2011 ignited a fierce civil war that has led to the deaths of more than half a million people16 and displaced about 4.8 million refugees in Turkey, Lebanon, Jordan, Iraq, and Egypt.17 More than 6.3 million people are internally displaced within Syria.18 The destabilizing spillover effects of this civil war include the creation of large refugee populations that could become a reservoir of potential recruits for extremist groups. In Jordan, where King Abdullah’s regime has been buffeted by Arab Spring protests and adverse economic trends, Syrian refugees now account for more than 10 percent of the population. This has placed even more strain on Jordan’s small economy, scarce water resources, and limited social services, creating rising resentment among the local population.

In 2015, more than 1 million migrants and refugees from across the Middle East crossed into Europe—the largest numbers of migrating people that Europe has seen since World War II.19 This has sparked a crisis as countries struggle to cope with the massive influx and its social, economic, and political ramifications.

Thanks to the power vacuum created by the ongoing civil war in Syria, Islamist extremist groups, including the al-Qaeda–affiliated Jabhat Fateh al-Sham (formally known as al-Nusra Front) and the self-styled Islamic State (IS), formerly known as ISIS or ISIL and before that as al-Qaeda in Iraq, have carved out extensive sanctuaries where they are building proto-states and training militants from a wide variety of other Arab countries, Central Asia, Russia, Europe, Australia, and the United States. With a sophisticated Internet and social media presence and by capitalizing on the civil war in Syria and sectarian divisions in Iraq, the IS has been able to recruit over 25,000 fighters from outside the region to join its ranks in Iraq and Syria. These foreign fighters include over 4,500 citizens from Western nations, including approximately 250 U.S. citizens.20

In late 2013, the IS exploited the Shia-dominated Iraqi government’s heavy-handed alienation, marginalization, and repression of the Sunni Arab minority in Iraq to reinvigorate its insurgency and seize territory. In the summer of 2014, the IS spearheaded a broad Sunni uprising against Baghdad. The assault was incredibly effective, and by the end of the year, the IS controlled one-third of Iraq and one-third of Syria—a land mass roughly equal to the area of Great Britain—where the extremist group ruled upward of 9 million people. The self-proclaimed caliphate lost its final major redoubt in Iraq’s second largest city, Mosul, and its so-called capital city located in Raqqa, Syria, is currently under siege by Syrian Democratic Forces. The Peshmerga militia of the Kurdistan Regional Government, an autonomous area in northeastern Iraq, took advantage of the chaos caused by the collapse of the Iraqi security forces and occupied the city of Kirkuk, which Kurds have long considered to be rightfully theirs—a claim rejected by the central government in Baghdad. The IS continues to attack the Shia-dominated government in Baghdad, massacre Shia civilians and Sunnis who disagree with it, and terrorize religious and ethnic minorities in northern Iraq including the Christian community, Kurds, Turkmen, and Yazidis. In early 2016, Iraq’s military and militia forces, backed by air power from the U.S.-led coalition and by Peshmerga forces, launched an offensive to retake Mosul.

On September 10, 2014, the U.S. announced the formation of a broad international coalition to defeat the Islamic State. Today, this coalition has 69 members including non-state organizations like NATO and INTERPOL. However, many of these members merely provide political support: Today, 9,000 troops contributed by 23 of the coalition’s 69 member countries are on the ground in Iraq and Syria, and the bulk of these are from the U.S. (There are approximately 5,000 U.S. troops in Iraq and another 1,000 in Syria.) The U.S.-led air campaign has played a significant role in degrading IS capabilities, especially in support of the Mosul offensive, but even though the list of participants in this campaign (Australia, Bahrain, Belgium, Canada, Denmark, France, Jordan, Saudi Arabia, the Netherlands, Turkey, the United Arab Emirates, and the United Kingdom) is impressive, the U.S. conducts the vast majority of air strikes in Iraq and almost all of them in Syria.

Arab–Israeli tensions are another source of instability. The repeated breakdown of Israeli–Palestinian peace negotiations and the rise of the Hamas regime in Gaza in a 2007 coup have created an even more antagonistic situation. Hamas, the Palestinian branch of the Muslim Brotherhood, seeks to transform the conflict from a national struggle over sovereignty and territory into a religious conflict in which compromise is denounced as blasphemy. Hamas invokes jihad in its struggle against Israel and seeks to destroy the Jewish state and replace it with an Islamic state.

Although elected to power with only 44 percent of the vote in the 2006 elections (elections were due to be held in 2014 but have since been suspended indefinitely), Hamas has since forced its radical agenda on the people of Gaza. This has led in turn to diminished public support and a high degree of needless suffering. Hamas provoked wars with Israel in 2008, 2009, 2012, and 2014 and continues to threaten Israel and representatives of Egypt, Jordan, and the Palestinian Authority who have signed peace agreements with Israel. As long as Hamas remains imbued with its Islamist extremist ideology that advocates the destruction of Israel and retains a stranglehold over Gaza, achieving a sustainable Israeli–Palestinian peace agreement appears to be impossible.21

Important Alliances and Bilateral Relations in the Middle East

The U.S. has strong military, security, intelligence, and diplomatic ties with several Middle Eastern nations, including Israel, Egypt, Jordan, and the members of the Gulf Cooperation Council (GCC).22 Since the historical and political circumstances that led to the creation of NATO have largely been absent in the Middle East, the region lacks a similarly strong collective security organization. Middle Eastern countries traditionally have preferred to maintain bilateral relationships with the U.S. and generally have shunned multilateral arrangements because of the lack of trust among Arab states.

This lack of trust manifested itself in June 2017 when the Kingdom of Saudi Arabia, the United Arab Emirates, Bahrain, Egypt, and several other Muslim-majority countries cut or downgraded diplomatic ties with Qatar. All commercial land, air, and sea travel between Qatar and these nations has been severed, and Qatari diplomats and citizens have been evicted.

This is the best example of how regional tensions can transcend the Arab–Iranian or Israeli–Palestinian debate. Qatar has long supported Muslim Brotherhood groups, as well as questionable Islamist factions in Syria and Libya, and has often been seen as being too close for comfort with Iran, a major adversary of Sunni Arab states in the Gulf.

This is not the first time that something like this has happened, albeit on a much smaller scale. In 2014, a number of Arab states recalled their ambassadors to Qatar to protest Doha’s support for Egypt’s Muslim Brotherhood movement. It took eight months to resolve this dispute before relations could be fully restored.

Bilateral and multilateral relations in the region, especially with the U.S. and other Western countries, are often made more difficult by their secretive nature. The opaqueness of these relationships sometimes creates problems for the U.S. when trying to coordinate defense and security cooperation with European allies active in the region (mainly the U.K. and France).

Military training is an important part of these relationships. The main motivation behind these exercises is to ensure close and effective coordination with key regional partners, demonstrate an enduring U.S. security commitment to regional allies, and train Arab armed forces so that they can assume a larger share of responsibility for regional security. Last year, the U.S. Naval Forces Central Command launched the world’s largest maritime exercise across the Middle East to demonstrate global resolve in maintaining freedom of navigation and the free flow of maritime commerce.23 This has been followed by subsequent, albeit smaller, maritime exercises.

Kuwait, Bahrain, the UAE, Saudi Arabia, and Qatar have participated in, and in some cases have commanded, Combined Task Force-152, formed in 2004 to maintain maritime security in the Persian Gulf. The commander of the U.S. Central Command (CENTCOM) noted that Middle Eastern partners have begun to take the threat from transnational Islamist extremist groups more seriously as ISIS has gained momentum, increased in strength, and expanded its international influence.24 Middle Eastern countries have also participated further afield in Afghanistan; since 2001, Jordan, Egypt, Bahrain, and the UAE have supplied troops to the U.S.-led mission there. During the 2011 NATO-led operation in Libya, U.S. allies Qatar, Jordan, and the UAE participated to varying degrees.

In addition to military training, U.S. defense relations are underpinned by huge defense equipment deals. U.S. military hardware (and, to a lesser extent, British and French hardware) is preferred across the region because of its effectiveness and symbolic value as a sign of a close security relationship, and much of it has been combat tested. For example, Kuwait, the UAE, Jordan, and Saudi Arabia combined have more than 400 F-15, F-16, and F/A-18 jet fighter aircraft. Following the Iran nuclear deal, threatened Arab states undertook military buildups and a flood of arms purchases. The U.S. approved $33 billion worth of weapons sales to its Gulf Cooperation Council allies between May 2015 and March 2016. During his first overseas visit, President Trump announced a new $110 billion arms deal with Saudi Arabia.25 U.S. arms deals with GCC countries include ballistic missile defense systems, attack helicopters, advanced frigates, and anti-armor missiles. The use of U.S.-made hardware helps with interoperability and lays the foundation for longer-term regional engagement and cooperation.

Iran continues to incite violence against Israel by providing thousands of increasingly long-range rockets to Hamas, Palestine Islamic Jihad, and Hezbollah, all of which are committed to destroying Israel. Additionally, Iran has escalated its threats against Arab neighbors in the Persian Gulf by funding, training, equipping, and supporting anti-government militant groups in an attempt to undermine various Arab regimes.

Israel. America’s most important bilateral relationship in the Middle East is with Israel. Both countries are democracies, value free-market economies, and believe in human rights at a time when many countries in the Middle East reject those values. Israel has been designated as a Major Non-NATO ally (MNNA)26 because of its close ties to the U.S. With support from the United States, Israel has developed one of the world’s most sophisticated air and missile defense networks.27 No significant progress on peace negotiations with the Palestinians or on stabilizing Israel’s volatile neighborhood is possible without a strong and effective Israeli–American partnership.28

In March 2015, incumbent Prime Minister Benjamin Netanyahu soundly defeated his chief rival faction, the center-left Zionist Union. Netanyahu’s reelection enabled him to criticize the July 2015 U.S. nuclear agreement with Iran from a position of strength and further strained political relations with the Obama Administration. However, with the election of President Trump, U.S.–Israeli relations are as strong as they have been in years if not decades.

Saudi Arabia. After Israel, the U.S. military relationship is deepest with the Gulf states, including Saudi Arabia, which serves as de facto leader of the GCC. The United States started to play a more active role in the Persian Gulf after the U.K. completed the withdrawal of its military presence from bases “east of Suez” in 1971. The U.S. is also the largest provider of arms to Saudi Arabia and regularly, if not controversially, sells munitions needed to resupply stockpiles expended in the Saudi-led campaign against the Houthis in Yemen. As noted, President Trump recently approved a $110 billion arms sale to the Saudis.

America’s relationship with Saudi Arabia is based on pragmatism and is important for both security and economic reasons. The Saudis enjoy huge influence across the Muslim world. Roughly 2 million Muslims participate in the annual Hajj pilgrimage to the holy city of Mecca. Saudi Arabia owns the world’s second largest oil reserves and is the world’s foremost oil exporter. The uninterrupted flow of Saudi oil exports is crucial for fueling the global economy.

Riyadh has been a key partner in efforts to counterbalance Iran. Saudi Arabia also has played a growing role in countering the al-Qaeda terrorist network. Until 2003, Riyadh was in denial about Saudi connections to the 9/11 attacks. However, after Saudi Arabia was targeted by al-Qaeda terrorist attacks on its own soil, the government began to cooperate more closely in combating al-Qaeda.29 After the death of King Abdullah, his half-brother, Crown Prince Salman, ascended to the throne in late January 2015.

Gulf Cooperation Council. The countries of the GCC (Bahrain, Kuwait, Oman, Qatar, Saudi Arabia, and the UAE) are located close to the Arab–Persian fault line, making them strategically important to the U.S.30 The root of the Arab–Iranian tensions in the Gulf is Tehran’s ideological drive to export its Islamist revolution and overthrow the traditional rulers of the Arab kingdoms. This ideological clash has further amplified long-standing sectarian tensions between Shia Islam and Sunni Islam. Tehran has sought to radicalize Shia Arab minority groups to undermine Sunni Arab regimes in Saudi Arabia, Kuwait, and Bahrain. It also sought to incite revolts by the Shia majorities in Iraq against Saddam Hussein’s regime and in Bahrain against the Sunni al-Khalifa dynasty.

Culturally, many Iranians look down on the Gulf states, many of which they see as artificial states carved out of the former Persian Empire and propped up by Western powers. Long-standing Iranian territorial claims in the Gulf add to Arab–Persian tensions.31 For example, Iran has long considered Bahrain to be part of its territory, a claim that has strained bilateral relations and contributed to Bahrain’s decision to break diplomatic ties after the attack on the Saudi embassy in Tehran in early 2016.32 Iran also occupies the small but strategically important islands of Abu Musa, Greater Tunb, and Lesser Tunb (also claimed by the UAE) near the Strait of Hormuz.

The GCC often has problems agreeing on a common policy on matters of security. This reflects both the organization’s intergovernmental nature and the desire of its members to place national interests above those of the GCC. The recent events regarding Qatar illustrate this difficulty. Another source of disagreement involves the question of how best to deal with Iran. On one end of the spectrum, Saudi Arabia, Bahrain, and the UAE take a hawkish view of the threat from Iran. Oman and Qatar, both of which share natural gas fields with Iran, view Iran’s activities in the region as less of a threat and maintain good relations with Tehran. Kuwait tends to fall somewhere in the middle. Inter–GCC relations also can be problematic. The UAE, Bahrain, and Saudi Arabia have been at odds with Qatar over Qatar’s support for the Muslim Brotherhood, which they see as a threat to internal security, and Qatar has recently decreased its overt support for the organization in order to strengthen relations with its GCC partners.

Apart from Bahrain, the GCC countries have weathered the political turbulence of the Arab Spring relatively well. Many of their citizens enjoy a high standard of living (made possible by millions of foreign workers and the export of oil and gas), which makes it easier for them to tolerate authoritarian rule. Of the six GCC states, Bahrain fared the worst during the 2011 popular uprisings due to persistent Sunni–Shia sectarian tensions worsened by Iranian antagonism and the increased willingness of Shiite youths to protest what they see as discrimination by the al-Khalifa monarchy.

Egypt. Egypt is another important U.S. military ally. As one of only two Arab countries (the other being Jordan) that have diplomatic relations with Israel, Egypt is closely enmeshed in the Israeli–Palestinian conflict and remains a leading political, diplomatic, and military power in the region.

Relations between the U.S. and Egypt have been problematic since the 2011 downfall of President Hosni Mubarak after 30 years of rule. The Muslim Brotherhood’s Mohamed Morsi was elected president in 2012 and used the Islamist-dominated parliament to pass a constitution that advanced an Islamist agenda. Morsi’s authoritarian rule, combined with rising popular dissatisfaction with falling living standards, rampant crime, and high unemployment, led to a massive wave of protests in June 2013 that prompted a military coup in July. The leader of the coup, Field Marshal Abdel Fattah el-Sisi, pledged to restore democracy and was elected president in 2014. His government faces major political, economic, and security challenges. Egypt’s limping economy has been badly damaged by more than five years of political turbulence and violence that has reduced tourism revenues, deterred foreign investment, and raised the national debt. The new regime also faces an emboldened ISIS, which launched waves of attacks in North Sinai including the destruction of a Russian airliner over the Sinai Peninsula in October 2015.33 Occasional attacks continue today.

The July 2013 coup led by el-Sisi against the Muslim Brotherhood–backed Morsi regime strained relations with the Obama Administration and resulted in a temporary hold on U.S. military assistance to Egypt. U.S. assistance was eventually restored in 2015, but diplomatic relations remain strained. Cairo demonstrated its initial displeasure by buying Russian arms financed by Saudi Arabia in late 2013. Bilateral relations with the U.S. slowly started to improve after Egypt’s military made good on its promises to hold elections in 2014. President Trump’s willingness to work with el-Sisi has further improved U.S.–Egyptian relations.

Lebanon and Yemen. The United States has developed cooperative defense arrangements with Lebanon and Yemen, two states that face substantial threats from Iranian-supported terrorist groups as well as from al-Qaeda and the Islamic State. The United States has provided arms, equipment, and training for the Lebanese Armed Forces (LAF), which has found itself increasingly challenged by Sunni Islamist extremist groups, including the IS, in addition to the long-term threat posed by Hezbollah. Hezbollah has emerged as Lebanon’s most powerful military force, adding to GCC fears about growing Iranian influence in Lebanon. In early 2016, Saudi Arabia cut off its funding for $4 billion worth of military aid to Lebanon because the country did not condemn attacks on Saudi diplomatic missions in Iran, thereby intensifying the proxy war with Iran.34

Washington’s security relationship with Yemen has grown since the 9/11 attacks. Yemen, Osama bin Laden’s ancestral homeland, faces major security threats from al-Qaeda in the Arabian Peninsula (AQAP), one of the most dangerous al-Qaeda affiliates.

The overall political and security situation in Yemen deteriorated further in 2014–2016. In January 2015, the Houthis, a militant Shiite group based in northern Yemen and backed by Iran,35 overran the capital city of Sana’a and forced the internationally recognized government led by President Abd Rabbu Mansour Hadi to resign. The Houthis solidified their control throughout the North and West of Yemen, and President Hadi fled to Riyadh. Backed by the U.S., the U.K., and France, Saudi Arabia formed a coalition of 10 Sunni countries and led an air campaign against Houthi forces that began in March 2015. The coalition has rolled back the Houthis but is no closer to reinstating the internationally recognized government in Sana’a.

The Yemeni conflict has become a proxy war between Saudi Arabia and Iran. Riyadh supports the Yemeni government, and Iran has provided money, arms, and training to the Houthi rebels, who belong to the Zaidi sect of Shia Islam. The unstable political situation in Yemen caused the United States to evacuate its embassy and withdraw its special operations forces in 2015, severely undermining U.S. counterterrorism and intelligence capabilities in the country. The growing chaos enabled AQAP to expand its presence and establish a “mini-state” spanning more than 350 miles of coastline.36 The IS entered Yemen in March 2015; however, estimates suggest that the number of IS personnel in Yemen is in the hundreds, while al-Qaeda numbers in the thousands.37 Under President Trump, the U.S. has taken a more robust role in Yemen with its counterterrorism operations. For example, in March 2017 alone, the U.S. conducted more than 70 strikes in Yemen—double the total number of U.S. strikes in all of 2016.38

Quality of Armed Forces in the Middle East

The quality and capabilities of the region’s armed forces are mixed. Some countries spend billions of dollars each year on advanced Western military hardware, and others spend very little. Due to the drop in global oil prices, defense spending decreased in 2016 for oil-producing countries in the region while increasing for the non–oil-producing countries. Saudi Arabia was by far the region’s largest military spender despite dropping from $81.9 billion in 2015 to $56.9 billion in 2016—a decrease of 30 percent. By 2015, Iraq’s defense spending had increased by 536 percent when compared to 2006. However, like other oil-producing countries in the region, Iraq decreased its defense spending by 14.1 percent in 2016 even though large parts of the country remain under IS control.39 It is too early to tell how the lifting of European Union and U.S. sanctions will affect Iran’s military expenditure, but Tehran is expected to increase spending.

Historically, figures on defense spending for the Middle East have been very unreliable, but the lack of data has worsened. For 2016, there were no available data for Kuwait, Qatar, Syria, the United Arab Emirates, and Yemen according to a report by the Stockholm International Peace Research Institute.40

Different security factors drive the degree to which Middle Eastern countries fund, train, and arm their militaries. For Israel, which defeated Arab coalitions in wars in 1948, 1956, 1967, 1973, and 1982, the chief potential threats to its existence are now posed by an Iranian regime that has called for Israel to be “wiped from the map.”41 As a result of Israel’s military dominance, states and non-state actors in the region have invested in asymmetric and unconventional capabilities to offset Israel’s military superiority.42 For the Gulf states, the main driver of defense policy is the Iranian military threat combined with internal security challenges. For Iraq, the internal threat posed by insurgents and terrorists drives defense policy. In many ways, the Obama Administration’s engagement with Tehran united Israel and its Arab neighbors against the shared threat of Iran.

The Israel Defense Forces (IDF) are widely considered the most capable military force in the Middle East. On a conventional level, the IDF consistently surpasses other regional military forces.43 Other countries, such as Iran, have developed asymmetric tactics and have built up the military capabilities of proxy groups to close the gap in recent years,44 but the IDF’s quality and effectiveness remain unparalleled with regard to both technical capacity and personnel.45 This was demonstrated by Israel’s 2014 military operations against Hamas in the Gaza Strip: After weeks of conflict, the IDF mobilized over 80,000 reservists, demonstrating the depth and flexibility of the Israeli armed forces.46

Israel funds its military sector heavily and has a strong national industrial capacity supported by significant funding from the U.S. Combined, these factors give Israel a regional advantage despite limitations of manpower and size.47 In particular, the IDF has focused on maintaining its superiority in missile defense, intelligence collection, precision weapons, and cyber technologies.48 The Israelis regard their cyber capabilities as especially important. In early 2016, the IDF unveiled a new five-year plan, worth roughly $78.6 billion, to enhance cyber-protected and networked combat capabilities in order to augment the IDF’s capacity to fight in multiple theaters.49 Cyber technologies are used for a number of purposes, including defending Israeli cyberspace, gathering intelligence, and carrying out attacks.50 Israel maintains its qualitative superiority in medium-range and long-range missile capabilities.51 It also fields effective missile defense systems, including Iron Dome and Arrow, both of which the U.S. helped to finance.52 U.S. spending on Israel’s air and missile defense has soared in the past decade, from $133 million in 2006 to $488 million in 2016.53

Israel also has a nuclear weapons capability (which it does not publicly acknowledge) that increases its strength relative to other powers in the region. Israel’s nuclear weapons capability has helped to deter adversaries as the gap in conventional capabilities has been reduced.54

After Israel, the most technologically advanced and best-equipped armed forces are found in the Gulf Cooperation Council. Previously, the export of oil and gas meant that there was no shortage of resources to devote to defense spending, but the collapse of crude oil prices may force oil-exporting countries to adjust their defense spending patterns. At present, however, GCC nations still have the best-funded, although not necessarily the most effective, Arab armed forces in the region.

The GCC established a joint expeditionary force called the Peninsula Shield Force (PSF), which has had only modest operational success and has never met its stated ambition of deploying tens of thousands of soldiers. Created in 1984, its main purpose today is to counter Iran’s military buildup and help maintain internal security. The PSF first deployed a modest force of 3,000 troops to help liberate Kuwait during the first Gulf War. Its most recent deployment was to Bahrain in 2011 to help restore order after Iranian-backed Shiite protests brought the country to a standstill and threatened the monarchy.55 Internal divisions inside the GCC, especially among Qatar, UAE, and Saudi Arabia, have prevented the PSF from playing a more active role in the region.

All GCC members boast advanced defense hardware with a preference for U.S., U.K., and French equipment. Saudi Arabia maintains the most capable military force in the GCC. It has an army of 75,000 soldiers and a National Guard of 100,000 personnel reporting directly to the king. The army operates 900 main battle tanks including 370 U.S.-made M1A2s. Its air force is built around American and British-built aircraft and consists of more than 338 combat-capable aircraft including F-15s, Tornados, and Typhoons.56 These aircraft flew missions over Yemen against Houthi rebels in 2009–2010, during Operation Decisive Storm in Yemen beginning in March 2015, and most recently over Syria as part of the U.S.-led fight against ISIS.57 Both Saudi Arabia58 and the UAE59 have hundreds of Storm Shadow air-launched cruise missiles (known as Black Shaheen in the UAE) in their inventories. These weapons proved highly effective when the British and French used them during the air campaign over Libya in 2011.

In fact, air power is the strong suit of most GCC members. Oman operates F-16s and has purchased 12 Typhoons, on track to be delivered in 2017. According to Defense Industry Daily, “The UAE operates the F-16E/F Desert Falcon, which holds more advanced avionics than any F-16 variant in the US inventory.”60 Qatar operates French-made Mirage fighters. The UAE and Qatar deployed fighters to participate in NATO-led operations over Libya in 2011 (although they did not participate in strike operations). Beginning in early fall 2014, all six GCC members joined the U.S.-led anti-ISIS coalition, with the UAE contributing the most in terms of air power.61 However, air strikes in Syria by members of the GCC decreased substantially in 2017. The navies of the GCC members rarely deploy beyond their Exclusive Economic Zones, but all members (other than Oman) have participated in regional combined task forces led by the U.S.62 In 2016, Oman and Britain launched a multimillion-dollar joint venture to develop Duqm as a strategic Middle Eastern port in the Indian Ocean to improve defense security and prosperity agendas.63

Even with the billions of dollars invested each year by members of the GCC, most see security ties with the United States as crucial for their security. As former U.S. Defense Secretary Robert Gates once noted, the Saudis will “fight the Iranians to the last American.”64

Egypt has the largest Arab military force in the Middle East, with 438,500 active personnel and 479,000 reserve personnel in its armed forces.65 It possesses a fully operational military with an army, air force, air defense, navy, and special operations forces. Until 1979, when the U.S. began to supply Egypt with military equipment, Cairo relied primarily on less capable Soviet military technology.66 Since then, its army and air force have been significantly upgraded with U.S. military weapons, equipment, and warplanes.

Egypt substantially increased troop deployments and military operations in 2015 following the onslaught of Islamist and insurgent activity at its borders. This has been the case especially with respect to Libya, where the Egyptian air force has conducted a number of air strikes in the past two years aimed at terrorist targets there.67 It has also sought closer security cooperation with other North African states to improve border and internal security.68

The most visible expression of U.S. influence in Cairo is military aid, which was withheld in some areas after the 2013 military coup but reinstated in 2015. Since 1948, the U.S. has provided Egypt with more than $77 billion in foreign aid.69 Recently, this support has helped Egypt to procure Apache attack helicopters, F-16s, Harpoon ship-to-ship missile systems, and M1A1 tank kits.

Egypt has struggled with increased terrorist activity in the Sinai Peninsula, including attacks on Egyptian soldiers, attacks on foreign tourists, and the October 2015 bombing of a Russian airliner departing from the Sinai, for all of which the Islamic State’s “Sinai Province” terrorist group has claimed responsibility. The government’s response to the uptick of violence has been severe: arrests of thousands of suspected Islamist extremists and restrictive measures such as a law criminalizing media reporting that contradicts official reports.70

Jordan is a close U.S. ally with small but effective military forces. Its principal security threats include ISIS, turbulence in Syria and Iraq, and the resulting flow of refugees. Jordan is currently home to more than 1.4 million registered and unregistered Syrian refugees. In January 2016, King Abdullah announced that Jordan had reached the saturation point in its ability to take in more Syrian refugees.71 While Jordan faces few conventional threats from its neighbors, its internal security is threatened by Islamist extremists returning from fighting in the region who have been emboldened by the growing influence of al-Qaeda and other Islamist militants. As a result, Jordan’s highly professional armed forces have been focused in recent years on border and internal security. Nevertheless, Jordan’s conventional capability is significant considering its size.

Jordan’s ground forces total 74,000 soldiers and include 390 British-made Challenger 1 tanks. The backbone of its air force is comprised of 43 F-16 Fighting Falcons.72 Jordan’s special operations forces are highly capable, having benefitted from extensive U.S. and U.K. training. Jordanian forces have served in Afghanistan and in numerous U.N.-led peacekeeping operations.

Iraq has fielded one of the region’s most dysfunctional military forces. After the 2011 withdrawal of U.S. troops, Iraq’s government selected and promoted military leaders according to political criteria. Shiite army officers were favored over their Sunni, Christian, and Kurdish counterparts. Then-Prime Minister Nouri al-Maliki chose top officers according to their political loyalties. Politicization of the armed forces also exacerbated corruption within many units, with some commanders siphoning off funds allocated for “ghost soldiers” who never existed or had been separated from the army for various reasons.

The promotion of incompetent military leaders, poor logistical support due to corruption and other problems, limited operational mobility, and weaknesses in intelligence, reconnaissance, medical support, and air force capabilities have combined to weaken the effectiveness of the Iraqi armed forces. In June 2014, for example, the collapse of up to four divisions, which were routed by vastly smaller numbers of Islamic State fighters, led to the fall of Mosul. Although security and stability operations continue, Iraqi Prime Minister Haider al-Abadi announced the liberation of Mosul on July 9, 2017.73

Current U.S. Military Presence in the Middle East

The United States maintained a limited military presence in the Middle East before 1980, chiefly a small naval force based at Bahrain since 1958. The U.S. “twin pillar” strategy relied on prerevolutionary Iran and Saudi Arabia to take the lead in defending the Persian Gulf from the Soviet Union and its client regimes in Iraq, Syria, and South Yemen,74 but the 1979 Iranian revolution demolished one pillar, and the December 1979 Soviet invasion of Afghanistan increased the Soviet threat to the Gulf. President Jimmy Carter proclaimed in January 1980 that the United States would take military action to defend oil-rich Persian Gulf states from external aggression, a commitment known as the Carter Doctrine. In 1980, he ordered the creation of the Rapid Deployment Joint Task Force (RDJTF), the precursor to USCENTCOM, established in January 1983.75

Up until the late 1980s, a possible Soviet invasion of Iran was considered to be the most significant threat facing the U.S. in the Middle East.76 After the collapse of the Soviet Union, Saddam Hussein’s Iraqi regime became the chief threat to regional stability. Iraq invaded Kuwait in August 1990, and the United States responded in January 1991 by leading an international coalition of more than 30 nations to expel Iraqi forces from Kuwait. CENTCOM commanded the U.S. contribution of more than 532,000 military personnel to the coalition armed forces, which totaled at least 737,000.77 This marked the peak U.S. force deployment in the Middle East.

Confrontations with Iraq continued throughout the 1990s as a result of Iraqi violations of the 1991 Gulf War cease-fire. Baghdad’s failure to cooperate with U.N. arms inspectors to verify the destruction of its weapons of mass destruction and its links to terrorism led to the U.S. invasion of Iraq in 2003. During the initial invasion, U.S. forces reached nearly 150,000, joined by military personnel from coalition forces. Apart from the “surge” in 2007, when President George W. Bush deployed an additional 30,000 personnel, American combat forces in Iraq fluctuated between 100,000 and 150,000.78 In December 2011, the U.S. officially completed its withdrawal of troops, leaving only 150 personnel attached to the U.S. embassy in Iraq.79 In the aftermath of IS territorial gains in Iraq, the U.S. has redeployed thousands of troops to Iraq. Today, approximately 5,000 troops are helping with the anti-IS effort in that country.

In addition, the U.S. continues to maintain a limited number of forces in other locations in the Middle East, primarily in GCC countries. Currently, tens of thousands of U.S. troops are serving in the region. Their exact disposition is not made public because of political sensitivities,80 but information gleaned from open sources reveals the following:

  • Kuwait. Approximately 17,500 U.S. personnel are based in Kuwait. (The U.S. routinely maintains 15,000 troops in Kuwait but recently added another 2,500 in support of the anti-IS campaign in Iraq.81) These forces are spread among Camp Arifjan, Ahmed Al Jaber Air Base, and Ali Al Salem Air Base. A large depot of prepositioned equipment and a squadron of fighters and Patriot missile systems are also deployed to Kuwait.
  • UAE. According to CENTCOM, about 4,000 U.S. personnel,82 mainly from the U.S. Air Force, are stationed in the UAE, primarily at Al Dhafra Air Base. Their main mission in the UAE is to operate fighters, unmanned aerial vehicles (UAVs), refueling aircraft, and surveillance aircraft. The United States also has regularly deployed F-22 Raptor combat aircraft to Al Dhafra.83 Patriot missile systems are deployed for air and missile defense.
  • Oman. Since 2004, Omani facilities reportedly have not been used for air support operations in either Afghanistan or Iraq, and the number of U.S. military personnel in Oman has fallen to about 200, mostly from the U.S. Air Force. According to the Congressional Research Service, “the United States reportedly can use—with advance notice and for specified purposes—Oman’s military airfields in Muscat (the capital), Thumrait, and Masirah Island.”84
  • Bahrain. The oldest U.S. military presence in the Middle East is found in Bahrain. Today, some 8,000 U.S. military personnel are based there.85 Bahrain is home to the Naval Support Activity Bahrain and the U.S. Fifth Fleet, so most U.S. military personnel there belong to the U.S. Navy. A significant number of U.S. Air Force personnel operate out of Shaykh Isa Air Base, where F-16s, F/A-18s, and P-3 surveillance aircraft are stationed.86 U.S. Patriot missile systems also are deployed to Bahrain. The deep-water port of Khalifa bin Salman is one of the few facilities in the Gulf that can accommodate U.S. aircraft carriers.
  • Saudi Arabia. The U.S. withdrew the bulk of its forces from Saudi Arabia in 2003. Little information on the number of U.S. military personnel currently based there is available. However, the six-decade-old United States Military Training Mission to the Kingdom of Saudi Arabia, the four-decade-old Office of the Program Manager of the Saudi Arabian National Guard Modernization Program, and the Office of the Program Manager–Facilities Security Force are based in Eskan Village Air Base approximately 13 miles south of the capital city of Riyadh.87
  • Qatar. Approximately 10,000 U.S. personnel, mainly from the U.S. Air Force, are deployed in Qatar.88 The U.S. operates its Combined Air Operations Center at Al Udeid Air Base, which is one of the most important U.S. air bases in the world. It is also the base from which the anti-ISIS campaign is headquartered. Heavy bombers, tankers, transports, and ISR aircraft operate from there. Al Udeid Air Base also serves as the forward headquarters of CENTCOM. The base also houses prepositioned U.S. military equipment and is defended by U.S. Patriot missile systems.

It is too soon to say how recent diplomatic moves by Saudi Arabia and other Arab states against Doha will affect the United States’ relationship with Qatar, if at all. U.S. military relationships in the region have been known for their flexibility and pragmatism. In the short term, the Saudi-led GCC ban on commercial travel and shipping to Qatar might adversely affect America’s ability to keep the base supplied with food and other essentials. The U.S. will be able to overcome this challenge, but at a cost. If the travel restrictions continue, the U.S. will eventually have to weigh the benefits of maintaining the base against the cost of doing so.

  • Jordan. According to CENTCOM, Jordan “is one of our strongest and most reliable partners in the Levant sub-region.”89 Although there are no U.S. military bases in Jordan, the U.S. has a long history of conducting training exercises in the country. Due to recent events in neighboring Syria, approximately 2000 troops, a squadron of F-16s, a Patriot missile battery, and M142 High Mobility Artillery Rocket Systems have been deployed in Jordan.90

In addition, there have been media reports that the U.S. government operates a secret UAV base in Saudi Arabia from which drone attacks against militants in Yemen are launched.91 There also are reports of an American base on Yemen’s Socotra Island, which is located near the coast of Somalia, being used for counterterrorism operations off the Horn of Africa and Yemen.92

CENTCOM’s stated mission is to promote cooperation among nations; respond to crises; deter or defeat state and non-state aggression; support economic development; and, when necessary, perform reconstruction in order to establish the conditions for regional security, stability, and prosperity.

CENTCOM is supported by four service component commands and one subordinate unified command: U.S. Naval Forces Middle East (USNAVCENT); U.S. Army Forces Middle East (USARCENT); U.S. Air Forces Middle East (USAFCENT); U.S. Marine Forces Middle East (MARCENT); and U.S. Special Operations Command Middle East (SOCCENT).

  • U.S. Naval Forces Central Command. USNAVCENT is the maritime component of USCENTCOM. With its forward headquarters in Bahrain, it is responsible for commanding the afloat units that rotationally deploy or surge from the United States, in addition to other ships that are based in the Gulf for longer periods. USNAVCENT conducts persistent maritime operations to advance U.S. interests, deter and counter disruptive countries, defeat violent extremism, and strengthen partner nations’ maritime capabilities in order to promote a secure maritime environment in an area encompassing about 2.5 million square miles of water.
  • U.S. Army Forces Central Command. USARCENT is the land component of USCENTCOM. Based in Kuwait, it is responsible for land operations in an area encompassing 4.6 million square miles (1.5 times larger than the continental United States).
  • U.S. Air Forces Central Command. USAFCENT is the air component of USCENTCOM. Based in Qatar, it is responsible for air operations and for working with the air forces of partner countries in the region. Additionally, USAFCENT manages an extensive supply and equipment prepositioning program at several regional sites.
  • U.S. Marine Forces Central Command. USMARCENT is the designated Marine Corps service component for USCENTCOM. Based in Bahrain, it is responsible for all Marine Corps forces in the region.
  • U.S. Special Operations Command Central. SOCCENT is a subordinate USCENTCOM unified command. Based in Qatar, it is responsible for planning special operations throughout the USCENTCOM region, planning and conducting peacetime joint/combined special operations training exercises, and orchestrating command and control of peacetime and wartime special operations.

In addition to the American military presence in the region, two U.S. allies—the United Kingdom and France—play an important role that should not be overlooked.

The U.K.’s presence in the Middle East is a legacy of British imperial rule. The U.K. has maintained close ties with many countries over which it once ruled and has conducted military operations in the region for decades. Approximately 1,200 British service personnel are based throughout the Gulf.

The British presence in the region is dominated by the Royal Navy. In terms of permanently based naval assets, there are four mine hunters and one Royal Fleet Auxiliary supply ship. Generally, there also are frigates or destroyers in the Gulf or Arabian Sea performing maritime security duties. Although such matters are not the subject of public discussion, U.K. attack submarines also operate in the area. As a sign of its long-term maritime presence in the region, the U.K. broke ground on an $11 million headquarters for its Maritime Component Command at Bahrain’s Salman Naval Base in 201493 and recently announced a multimillion-dollar investment to modernize the Duqm Port complex in Oman to accommodate the U.Ks new Queen Elizabeth-class aircraft carriers.94

The U.K. also has a sizeable Royal Air Force (RAF) presence in the region, mainly in the UAE and Oman. A short drive from Dubai, Al-Minhad Air Base is home to a small contingent of U.K. personnel. The U.K. also operates small RAF detachments in Oman that support U.K. and coalition operations in the region. Although considered to be in Europe, the U.K.’s Sovereign Base Areas of Akrotiri and Dhekelia in Cyprus have supported U.S. military and intelligence operations in the past and will continue to do so in the future.

The British presence in the region extends beyond soldiers, ships, and planes. A British-run staff college operates in Qatar, and Kuwait chose the U.K. to help run its own equivalent of the Royal Military Academy at Sandhurst.95 The U.K. also plays a very active role in training the Saudi Arabian and Jordanian militaries.

The French presence in the Gulf is smaller than the U.K.’s but is still significant. France opened its first military base in the Gulf in 2009 in Abu Dhabi in the UAE. This was the first foreign military installation built by the French in 50 years.96 In total, the French have 650 personnel based in the country along with eight Rafale fighter jets.97 French ships have access to the Zayed Port, which is big enough to handle every ship in the French Navy except the aircraft carrier Charles De Gaulle.

Another important actor in Middle East security is the small East African country of Djibouti. It sits on the Bab el-Mandeb Strait, through which nearly 4.7 million barrels of oil a day transit and which is a choke point on the route to the Suez Canal. An increasing number of countries recognize Djibouti’s value as a base from which to project maritime power and launch counterterrorism operations. It is home to the U.S.’s only permanent military base in Africa, Camp Lemonnier, with its approximately 4,000 personnel. In 2016, Djibouti granted China a 10-year lease on land to build China’s first permanent overseas base, which will have the capacity to house 10,000 troops and is just across a bay from Camp Lemonnier. Saudi Arabia also announced in 2016 that it would build a base in Djibouti. France, Italy, Germany, and Japan already have presences of varying strength there.

Key Infrastructure and Warfighting Capabilities

The Middle East is geographically situated in a critical location. Two-thirds of the world’s population lives within an eight-hour flight from the Gulf region, making it accessible from most of the globe. The Middle East also contains some of the world’s most critical maritime choke points, such as the Suez Canal and the Strait of Hormuz.

While infrastructure is not as developed in the Middle East as it is in North America or Europe, a decades-long presence means that the U.S. has tried and tested systems that involve moving large numbers of matériel and personnel into and out of the region. For example, according to the Department of Defense, at the height of U.S. combat operations in Iraq during the Second Gulf War, there were 165,000 servicemembers and 505 bases. Moving personnel and equipment out of the country was an enormous undertaking—“the largest logistical drawdown since World War II”98—and included the redeployment of “the 60,000 troops who remained in Iraq at the time and more than 1 million pieces of equipment ahead of their deadline.”99

The condition of roads in the region varies from country to country. For example, 100 percent of the roads in Israel, Jordan, and the UAE are paved. Other nations, such as Oman (49 percent), Saudi Arabia (21.5 percent), and Yemen (8.7 percent), have poor paved road coverage according to the most recent information available.100 Rail coverage is also poor. For instance, Saudi Arabia has only 563 miles of railroads.101 By comparison, New Hampshire, which is roughly 1 percent the size of Saudi Arabia, has about the same amount in freight rail miles alone.102 In Syria, six years of civil war has wreaked havoc on the rail system.103

The U.S. has access to several airfields in the region. The primary air hub for U.S. forces is at Al Udeid Air Base in Qatar. Other airfields include Ali Al Salem Air Base, Kuwait; Al Dhafra, UAE; Al Minhad, UAE; Isa, Bahrain; Eskan Village Air Base, Saudi Arabia; Muscat, Oman; Thumrait, Oman; Masirah Island, Oman; and use of the commercial airport at Seeb, Oman. In the past, the U.S. has used major airfields in Iraq, including Baghdad International Airport and Balad Air Base, as well as Prince Sultan Air Base in Saudi Arabia. Just because the U.S. has access to a particular air base today does not mean that it will be made available for a particular operation in the future. For example, it is highly unlikely that Qatar and Oman would allow the U.S. to use air bases in their territory for strikes against Iran.

The U.S. has access to ports in the region, perhaps most importantly in Bahrain. The Naval Support Activity Bahrain has undertaken a $260 million expansion project that will enable the homeporting of littoral combat ships by 2018 in one of the world’s busiest waterways.104 The U.S. also has access to a deep-water port, Khalifa bin Salman, in Bahrain and naval facilities at Fujairah, UAE.105 The UAE’s commercial port of Jebel Ali is open for visits from U.S. warships and prepositioning of equipment for operations in theater.106

Approximately 90 percent of the world’s trade travels by sea, and some of the busiest and most important shipping lanes are located in the Middle East. For example, the Strait of Hormuz and the Bab el-Mandeb Strait combined have over 65,000 cargo ships travelling through them each year.107 Given the high volume of maritime traffic in the region, no U.S. military operation can be undertaken without consideration of how these shipping lanes offer opportunity and risk to America and her allies. The major shipping routes include:

  • The Suez Canal. In 2016, 974 million tons of cargo transited the canal, averaging 46 ships each day.108 Considering that the canal itself is 120 miles long but only 670 feet wide, this is an impressive amount of traffic. The Suez Canal is important for Europe in terms of oil transportation. The canal also serves as an important strategic asset, as it is used routinely by the U.S. Navy to move surface combatants between the Mediterranean Sea and the Red Sea.

Middle East Oil Transit Choke Points

Thanks to a bilateral arrangement between Egypt and the United States, the U.S. Navy enjoys priority access to the canal. However, the journey through the narrow waterway is no easy task for large surface combatants. The canal was not constructed with the aim of accommodating 90,000-ton aircraft carriers and therefore exposes a larger ship to attack. For this reason, different types of security protocols are followed, including the provision of air support by the Egyptian military.109

  • Strait of Hormuz. The Strait of Hormuz is a critical oil-supply bottleneck and the world’s busiest passageway for oil tankers. The strait links the Persian Gulf with the Arabian Sea and the Gulf of Oman. Nearly 17 million barrels of oil per day, “about 30% of all seaborne-traded oil,” pass through the strait for an annual total of more than 6 billion barrels of oil. Most of these crude oil exports go to Asian markets, particularly Japan, India, South Korea, and China.110

The shipping routes through the Strait of Hormuz are particularly vulnerable to disruption, given the extremely narrow passage and its proximity to Iran. Tehran has repeatedly threatened to close the strategic strait if Iran is attacked. While attacking shipping in the strait would drive up oil prices, Iran would also lose, both because it depends on the Strait of Hormuz to export its own crude oil and because such an attack would undermine Tehran’s relations with such oil importers as China, Japan, and India. Tehran also would pay a heavy military price if it provoked a U.S. military response.

  • Bab el-Mandeb Strait. The Bab el-Mandeb strait is a strategic waterway located between the Horn of Africa and Yemen that links the Red Sea to the Indian Ocean. Exports from the Persian Gulf and Asia destined for Western markets must pass through the strait en route to the Suez Canal. Oil tankers transport approximately 4.7 million barrels of oil per day through the strait.111 The Bab el-Mandeb Strait is 18 miles wide at its narrowest point, limiting passage to two channels for inbound and outbound shipments.112

Over the past decade, piracy off the coast of Somalia has dominated the focus of international maritime security efforts. Recently, however, the frequency of pirate attacks in the region has reached its lowest point since 2006, according to the International Maritime Bureau’s global piracy report. Pirate activity, however, continues to threaten international trade and the safety of the international commons.113

Maritime Prepositioning of Equipment and Supplies. The U.S. military has deployed non-combatant maritime prepositioning ships (MPS) containing large amounts of military equipment and supplies in strategic locations from which they can reach areas of conflict relatively quickly as associated U.S. Army or Marine Corps units located elsewhere arrive in the areas. The British Indian Ocean Territory of Diego Garcia, an island atoll, hosts the U.S. Naval Support Facility Diego Garcia, which supports prepositioning ships that can supply Army or Marine Corps units deployed for contingency operations in the Middle East.


For the foreseeable future, the Middle East region will remain a key focus for U.S. military planners. An area that was once considered relatively stable, mainly due to the ironfisted rule of authoritarian regimes, is now highly unstable and a breeding ground for terrorism. Overall security in the region has deteriorated in recent years. Conflicts in Iraq, Libya, Syria, and Yemen have worsened, with Islamic State or al-Qaeda fighters playing major roles. The regional dispute with Qatar has made U.S. relations in the region even more complex and difficult to manage. The Russian and Iranian interventions in Syria have greatly complicated the fighting there. Egypt faces a growing insurgency in the Sinai that is gradually spreading. Iraq has managed to stem the advance of and actually to push back the Islamic State but needs substantial help to defeat it.

Many of the borders created after World War I are under significant stress. In countries like Iraq, Libya, Syria, and Yemen, the supremacy of the nation-state is being challenged by non-state actors that wield influence, power, and resources comparable to those of small states. The main security and political challenges in the region are linked inextricably to the unrealized aspirations of the Arab Spring, surging transnational terrorism, and the potential threat of Iran. These challenges are made more difficult by the Arab–Israeli conflict, Sunni–Shia sectarian divides, the rise of Iran’s Islamist revolutionary nationalism, and the proliferation of Sunni Islamist revolutionary groups.

Thanks to decades of U.S. military operations in the Middle East, the U.S. has tried and tested procedures for operating in the region. Bases and infrastructure are well established. The logistical processes for maintaining a large force forward deployed thousands of miles away from the homeland are well in place. Unlike in Europe, all of these processes have recently been tested in combat. The personal links between allied armed forces are also present. Joint training exercises improve interoperability, and U.S. military educational courses, which officers (and often royals) from the Middle East regularly attend, allow the U.S. to influence some of the region’s future leaders.

America’s relationships in the region are based pragmatically on shared security and economic concerns. As long as these issues remain relevant to both sides, the U.S. is likely to have an open door to operate in the Middle East when its national interests require it to do so.

Scoring the Middle East Operating Environment

As noted at the beginning of this section, various aspects of the region facilitate or inhibit the ability of the U.S. to conduct military operations to defend its vital national interests against threats. Our assessment of the operating environment utilizes a five-point scale, ranging from “very poor” to “excellent” conditions and covering four regional characteristics of greatest relevance to the conduct of military operations:

  1. Very Poor. Significant hurdles exist for military operations. Physical infrastructure is insufficient or nonexistent, and the region is politically unstable. In addition, the U.S. military is poorly placed or absent, and alliances are nonexistent or diffuse.
  2. Unfavorable. A challenging operating environment for military operations is marked by inadequate infrastructure, weak alliances, and recurring political instability. The U.S. military is inadequately placed in the region.
  3. Moderate. A neutral to moderately favorable operating environment is characterized by adequate infrastructure, a moderate alliance structure, and acceptable levels of regional political stability. The U.S. military is adequately placed.
  4. Favorable. A favorable operating environment includes good infrastructure, strong alliances, and a stable political environment. The U.S. military is well placed in the region for future operations.
  5. Excellent. An extremely favorable operating environment includes well-established and well-maintained infrastructure, strong and capable allies, and a stable political environment. The U.S. military is exceptionally well placed to defend U.S. interests.

The key regional characteristics consist of:

a. Alliances. Alliances are important for interoperability and collective defense, as allies would be more likely to lend support to U.S. military operations. Various indicators provide insight into the strength or health of an alliance. These include whether the U.S. trains regularly with countries in the region, has good interoperability with the forces of an ally, and shares intelligence with nations in the region.

b. Political Stability. Political stability brings predictability for military planners when considering such things as transit, basing, and overflight rights for U.S. military operations. The overall degree of political stability indicates whether U.S. military actions would be hindered or enabled and considers, for example, whether transfers of power in the region are generally peaceful and whether there have been any recent instances of political instability.

c. U.S. Military Positioning. Having military forces based or equipment and supplies staged in a region greatly facilitates the ability if the United States to respond to crises and, presumably, achieve success in critical “first battles” more quickly. Being routinely present in a region also assists in maintaining familiarity with its characteristics and the various actors who might assist or thwart U.S. actions. With this in mind, we assessed whether or not the U.S. military was well positioned in the region. Again, indicators included bases, troop presence, prepositioned equipment, and recent examples of military operations (including training and humanitarian) launched from the region.

d. Infrastructure. Modern, reliable, and suitable infrastructure is essential to military operations. Airfields, ports, rail lines, canals, and paved roads enable the U.S. to stage, launch, and logistically sustain combat operations. We combined expert knowledge of regions with publicly available information on critical infrastructure to arrive at our overall assessment of this metric.114

In summary, the U.S. has developed an extensive network of bases in the region and has acquired substantial operational experience in combatting regional threats, but many of its allies are hobbled by political instability, economic problems, internal security threats, and mushrooming transnational threats. Although the overall score remains “moderate,” as it was last year, it has fallen lower and is in danger of falling to “poor” because of increasing political instability and growing bilateral tensions with allies over the security implications of the nuclear agreement with Iran and how best to fight the Islamic State.

With this in mind, we arrived at these average scores for the Middle East (rounded to the nearest whole number):

  • Alliances: 3—Moderate
  • Political Stability: 1—Very Poor
  • U.S. Military Positioning: 3—Moderate
  • Infrastructure: 3—Moderate

Leading to a regional score of: Moderate

Operational Environment: Middle East


1. For example, Sir Mark Sykes, Britain’s lead negotiator with the French on carving up the Ottoman Empire in the Middle East, during a 1916 meeting in Downing Street pointed to the map and told the Prime Minister that for Britain’s sphere of influence in the Middle East, “I should like to draw a line from the e in Acre [modern-day Israel] to the last k in Kirkuk [modern-day Iraq].” See James Barr, A Line in the Sand: Britain, France, and the Struggle That Shaped the Middle East (London: Simon & Schuster U.K., 2011), pp. 7–20. See also Margaret McMillan, Paris 1919: Six Months That Changed the World (New York: Random House, 2003).

2. “What Is the Difference Between Sunni and Shia Muslims?” The Economist, May 28, 2013, https://www.economist.com/blogs/economist-explains/2013/05/economist-explains-19 (accessed June 22, 2017).

3. U.S. net imports of oil equaled roughly 25 percent of U.S. consumption in 2016. Of this, 18 percent came from Persian Gulf countries. Since 2005, U.S. oil imports have decreased year on year. See U.S. Department of Energy, Energy Information Administration, “Oil: Crude and Petroleum Products Explained: Oil Imports and Exports,” last updated May 8, 2017, https://www.eia.gov/energyexplained/index.cfm?page=oil_imports (accessed June 22, 2017).

4. U.S. Department of Energy, Energy Information Administration, “Country Analysis Brief: Japan,” last updated February 2, 2017, https://www.eia.gov/beta/international/analysis_includes/countries_long/Japan/japan.pdf (accessed June 26, 2017).

5. World Bank, “Republic of Korea: Overview,” last updated April 14, 2017, http://www.worldbank.org/en/country/korea/overview (accessed June 26, 2017).

6. U.S. Department of Energy, Energy Information Administration, “Country Analysis Brief: South Korea,” last updated January 19, 2017, https://www.eia.gov/beta/international/analysis_includes/countries_long/Korea_South/south_korea.pdf (accessed June 26, 2017).

7. Clifford Krauss, “Oil Prices: What to Make of the Volatility,” The New York Times, updated June 14, 2017, http://www.nytimes.com/interactive/2016/business/energy-environment/oil-prices.html?_r=0 (accessed June 22, 2017).

8. Tim Bowler, “Falling Oil Prices: Who Are the Winners and Losers?” BBC News, January 19, 2015, http://www.bbc.com/news/business-29643612 (accessed June 22, 2017).

9. U.S. Central Intelligence Agency, The World Factbook 2017, https://www.cia.gov/library/publications/the-world-factbook/index.html (accessed May 30, 2017).

10. “Country Rankings,” in Ambassador Terry Miller and Anthony B. Kim, 2017 Index of Economic Freedom (Washington: The Heritage Foundation, 2017), http://www.heritage.org/index/ranking.

11. “The Arab Winter.” The Economist, January 9, 2016, http://www.economist.com/news/middle-east-and-africa/21685503-five-years-after-wave-uprisings-arab-world-worse-ever/ (accessed June 22, 2017).

12. Sune Engel Rasmussen and Zahra Nader, “Iran Covertly Recruits Afghan Shias to Fight in Syria,” The Guardian, June 30, 2016, https://www.theguardian.com/world/2016/jun/30/iran-covertly-recruits-afghan-soldiers-to-fight-in-syria (accessed June 22, 2017).

13. BBC News, “Hague Fury as ‘Iranian Arms’ Bound for Taliban Seized,” March 9, 2011, http://www.bbc.com/news/uk-12694266 (accessed June 22, 2017).

14. James Phillips, “The Dangerous Regional Implications of the Iran Nuclear Agreement,” Heritage Foundation Backgrounder No. 3124, May 9, 2016, http://www.heritage.org/middle-east/report/the-dangerous-regional-implications-the-iran-nuclear-agreement.

15. Ibid.

16. Bethan Mckernan, “Past Month ‘Deadliest on Record’ for Syrian Civilians Killed in US-Led Air Strikes,” Independent, May 23, 2017, http://www.independent.co.uk/news/world/middle-east/syria-war-us-air-strikes-civilian-death-toll-deadliest-on-record-isis-donald-trump-a7751911.html (accessed June 22, 2017).

17. Mercy Corps, “Quick Facts: What You Need to Know About the Syria Crisis,” March 9, 2017, https://www.mercycorps.org/articles/iraq-jordan-lebanon-syria-turkey/quick-facts-what-you-need-know-about-syria-crisis (accessed June 22, 2017).

18. Ibid.

19. BBC News, “Migrant Crisis: Migration to Europe Explained in Seven Charts,” March 4, 2016, http://www.bbc.com/news/world-europe-34131911 (accessed June 22, 2017).

20. Lisa Curtis, ed., “Combatting the ISIS Foreign Fighter Pipeline: A Global Approach,” Heritage Foundation Special Report No. 180, January 6, 2016, http://www.heritage.org/middle-east/report/combatting-the-isis-foreign-fighter-pipeline-global-approach (accessed June 22, 2017).

21. James Phillips, “Gaza Crisis Illuminates a Grave New World,” Heritage Foundation Commentary, July 17, 2014, http://www.heritage.org/middle-east/commentary/gaza-crisis-illuminates-grave-new-world.

22. Bahrain, Kuwait, Oman, Qatar, Saudi Arabia, and the United Arab Emirates.

23. U.S. Naval Forces Central Command, “World’s Largest Maritime Exercise Underway in Middle East,” April 4, 2016, http://www.navy.mil/submit/display.asp?story_id=93996 (accessed June 22, 2017).

24. General Lloyd J. Austin III, Commander, U.S. Central Command, statement on “The Posture of U.S. Central Command” before the Committee on Armed Services, U.S. Senate, March 8, 2016, https://www.armed-services.senate.gov/imo/media/doc/Austin_03-08-16.pdf (accessed June 22, 2017).

25. Patricia Zengerle, “U.S. Lawmakers to Fight Massive Trump Saudi Arms Deal,” Reuters, May 25, 2017, http://www.reuters.com/article/us-usa-saudi-arms-congress-idUSKBN18L2XN (accessed June 22, 2017).

26. The MNNA designation was established during the dying days of the Cold War in 1989 to acknowledge American partners that contribute to U.S. security, defense, and broader geopolitical goals but are not members of NATO. The first tranche of countries to become MNNAs included South Korea, Israel, Egypt, Australia, and Japan. The country most recently awarded this title is Afghanistan, designated in 2012 by President Barack Obama.

27. Pieter D. Wezeman, “Conventional Strategic Military Capabilities in the Middle East,” EU Non-Proliferation Consortium Background Paper, July 2011, https://www.sipri.org/sites/default/files/2016-03/Conventional-strategic-military-capabilities-in-the-Middle-East.pdf (accessed June 22, 2017).

28. James Phillips, “Threats Demand U.S., Israeli Partnership,” Heritage Foundation Commentary, July 7, 2010, http://www.heritage.org/middle-east/commentary/threats-demand-us-israeli-partnership.

29. Ibid.

30. Created in 1981, the GCC was founded to offset the threat from Iran, which became hostile to Sunni-led Arab states after its 1979 revolution.

31. “US Embassy Cables: Bahrain’s Relations with Iran,” The Guardian, February 15, 2011, http://www.theguardian.com/world/us-embassy-cables-documents/164906 (accessed June 22, 2017).

32. BBC News, “Saudi Arabia’s Allies Bahrain, Sudan and UAE Act Against Iran,” January 4, 2016, http://www.bbc.com/news/world-middle-east-35222365 (accessed June 22, 2017).

33. BBC News, “Russia Plane Crash: ‘Terror Act’ Downed A321 over Egypt’s Sinai,” November 17, 2015, http://www.bbc.com/news/world-europe-34840943 (accessed June 22, 2017).

34. Ben Hubbard, “Saudis Cut Off Funding for Military Aid to Lebanon,” The New York Times, February 23, 2016, http://www.nytimes.com/2016/02/20/world/middleeast/saudis-cut-off-funding-for-military-aid-to-lebanon.html (accessed June 22, 2017).

35. Zachary Laub, “Yemen in Crisis,” Council on Foreign Relations Backgrounder, last updated April 19, 2016, http://www.cfr.org/yemen/yemen-crisis/p36488 (accessed August 2, 2016).

36. Ibid.

37. Asa Fitch and Saleh Al Batati, “ISIS Fails to Gain Much Traction in Yemen,” The Wall Street Journal, March 28, 2016, http://www.wsj.com/articles/isis-fails-to-gain-much-traction-in-yemen-1459203675 (accessed June 22, 2017).

38. Andrew Buncombe, “Donald Trump Administration Orders 70 Airstrikes on Yemen in a Month—Twice as Many as 2016 Total,” Independent, April 4, 2017, http://www.independent.co.uk/news/world/americas/us-politics/donald-trump-yemen-airstrikes-monthly-double-2016-obama-a7666676.html (accessed June 22, 2017).

39. International Institute for Strategic Studies, The Military Balance 2017: The Annual Assessment of Global Military Capabilities and Defence Economics (London: Routledge, 2017), pp. 358–359.

40. Stockholm International Peace Research Institute, “Trends in World Military Expenditure, 2016,” Fact Sheet, April 2017, https://www.sipri.org/sites/default/files/Trends-world-military-expenditure-2016.pdf (accessed May 31, 2017).

41. Nazila Fathi, “Wipe Israel ‘Off the Map’ Iranian Says,” The New York Times, October 27, 2005, http://www.nytimes.com/2005/10/26/world/africa/26iht-iran.html?_r=0 (accessed June 22, 2017).

42. Ibid.

43. International Institute for Strategic Studies, The Military Balance 2017, p. 382.

44. Zach Pontz, “New Military Index Ranking World’s Top Armies Places Israel Just Three Ahead of Iran,” The Algemeiner, June 14, 2013, http://www.algemeiner.com/2013/06/14/new-military-index-ranking-worlds-top-armies-places-israel-just-three-ahead-of-iran/ (accessed June 22, 2017).

45. Fareed Zakaria, “Israel Dominates the Middle East,” The Washington Post, November 21, 2012, http://www.washingtonpost.com/opinions/fareed-zakaria-israel-dominates-the-middle-east/2012/11/21/d310dc7c-3428-11e2-bfd5-e202b6d7b501_story.html (accessed June 22, 2017).

46. Voice of America News, “Israel Calls Up 16,000 More Reservists,” GlobalSecurity.org, July 31, 2014, http://www.globalsecurity.org/military/library/news/2014/07/mil-140731-voa01.htm (accessed June 22, 2017).

47. Anthony H. Cordesman and Aram Nerguizian, “The ArabIsraeli Military Balance: Conventional Realities and Asymmetric Challenges,” Center for Strategic and International Studies, revised June 29, 2010, p. 4, http://csis.org/files/publication/100629_Arab-IsraeliMilBal.pdf (accessed June 22, 2017).

48. Ibid.

49. Barbara Opall-Rome, “Israel’s 5-Year Plan Bulks Up Combat Capabilities; Cuts Manpower,” Defense News, January 7, 2016, http://www.defensenews.com/story/defense/policy-budget/policy/2016/01/07/israels-5-year-plan-bulks-up-combat-capabilities-cuts-manpower/78421050/ (accessed June 22, 2017).

50. Cordesman and Nerguizian, “The Arab–Israeli Military Balance,” p. 4.

51. Ruth Eglash and William Booth, “Israel to Launch One of the Most Advanced Missile Defense Systems in the World, with U.S. Help,” The Washington Post, March 3, 2016, https://www.washingtonpost.com/world/middle_east/israel-to-launch-one-of-the-most-advanced-missile-defense-systems-in-the-world-with-us-help/2016/03/03/6383cb88-dfd5-11e5-8c00-8aa03741dced_story.html (accessed June 22, 2017).

52. GlobalSecurity.org, “Iron Dome,” July 23, 2014, http://www.globalsecurity.org/military/world/israel/iron-dome.htm (accessed July 31, 2014).

53. Jeremy M. Sharp, “U.S. Foreign Aid to Israel,” Congressional Research Service Report for Members and Committees of Congress, December 22, 2016, https://fas.org/sgp/crs/mideast/RL33222.pdf (accessed May 31, 2017).

54. William Wunderle and Andre Briere, “Augmenting Israel’s Qualitative Military Edge,” Middle East Quarterly, Vol. 15, No. 1 (Winter 2008), pp. 49–58, http://www.meforum.org/1824/augmenting-israels-qualitative-military-edge (accessed June 22, 2017).

55. “GCC Forces Are ‘Protecting Key Installations,’” Gulf Digital News, January 5, 2014, http://www.gulf-daily-news.com/NewsDetails.aspx?storyid=368082 (accessed June 22, 2017).

56. International Institute for Strategic Studies, The Military Balance 2017, p. 402.

57. Brian Kalman and Edwin Watson, “Military Analysis: Saudi Arabia Deploys Combat Aircraft to Turkey,” SouthFront, February 24, 2016, https://southfront.org/military-analysis-saudi-arabia-deploys-combat-aircraft-to-turkey/ (accessed July 3, 2017).

58. Andrew Chuter, “BAE Plans First Powered Flight Tests of Storm Shadow Missile on Typhoon,” Defense News, July 10, 2016, http://www.defensenews.com/story/defense/air-space/strike/2016/06/10/bae-storm-shadow-cruise-missile/85688780/ (accessed June 22, 2017).

59. Center for Strategic and International Studies, Missile Defense Project, “Missile Threat: Apache AP/SCALP EG/Storm Shadow/SCALP Naval/Black Shaheen,” last updated December 2, 2016, https://missilethreat.csis.org/missile/apache-ap/ (accessed June 22, 2017).

60. Defense Industry Daily Staff, “Top Falcons: The UAE’s F-16 Block 60/61 Fighters,” Defense Industry Daily, January 26, 2014, http://www.defenseindustrydaily.com/the-uaes-f-16-block-60-desert-falcon-fleet-04538/ (accessed June 22, 2017).

61. Helene Cooper and Anne Barnard, “Jordan and Emirates Carry Out Airstrikes in Syria Against ISIS,” The New York Times, February 10, 2015, www.nytimes.com/2015/02/11/world/middleeast/united-arab-emirates-resume-airstrikes-against-isis.html (accessed June 22, 2017).

62. Combined Maritime Forces, “CTF-152: Gulf Maritime Security,” http://combinedmaritimeforces.com/ctf-152-gulf-security-cooperation/ (accessed May 10, 2016).

63. U.K. Ministry of Defence and The Rt. Hon. Michael Fallon, MP, “Multi-million Pound Joint Venture Announced Between Britain and Oman,” March 30, 2016, https://www.gov.uk/government/news/multi-million-pound-joint-venture-announced-between-britain-and-oman (accessed June 22, 2017).

64. Quoted in editorial, “More Complaints from the Saudis,” Chicago Tribune, December 17, 2013,http://articles.chicagotribune.com/2013-12-17/opinion/ct-saudis-versus-obama-edit-1217-20131217_1_saudis-president-barack-obama-riyadh (accessed June 22, 2017).

65. International Institute for Strategic Studies, The Military Balance 2017, p. 372.

66. GlobalSecurity.org, “Egypt: Introduction,” April 4, 2012, http://www.globalsecurity.org/military/world/egypt/intro.htm (accessed June 22, 2017).

67. Giles Elgood, “Egyptian Warplanes Bomb Targets in Libya After Attack on Christians,” Reuters, May 26, 2017, http://www.reuters.com/article/us-egypt-security-strikes-idUSKBN18M2G4 (accessed June 22, 2017).

68. International Institute for Strategic Studies, The Military Balance 2017, p. 372.

69. Muhammad Mansour, “US Aid to Egypt: Wrong but Inevitable,” Middle East Eye, May 15, 2017, http://www.middleeasteye.net/columns/us-aid-egypt-wrong-inevitable-1572718623 (accessed June 26, 2017).

70. Jared Malsin, “Egypt Is Struggling to Cope With Its ISIS Insurgency,” Time, July 23, 2015, http://time.com/3969596/egypt-isis-sinai/ (accessed June 22, 2017).

71. Rana F. Sweis, “Jordan Struggles Under a Wave of Syrian Refugees,” The New York Times, February 13, 2016,
http://www.nytimes.com/2016/02/14/world/middleeast/jordan-syria-refugees.html?_r=0 (accessed June 22, 2017).

72. International Institute for Strategic Studies, The Military Balance 2017, pp. 385–386.

73. Tim Arango and Michael R. Gordon, “Iraqi Prime Minister Arrives in Mosul to Declare Victory over ISIS,” The New York Times, July 9, 2017, https://www.nytimes.com/2017/07/09/world/middleeast/mosul-isis-liberated.html?mcubz=0 (accessed September 8, 2017).

74. During 1967 and 1990, South Yemen, officially known as the People’s Democratic Republic of Yemen, was a socialist state in the southeastern provinces of the present-day Republic of Yemen.

75. U.S. Central Command, “U.S. Central Command History,” http://www.centcom.mil/ABOUT-US/HISTORY/ (accessed June 22, 2017).

76. Ibid.

77. Lieutenant Colonel Joseph P. Englehardt, Desert Shield and Desert Storm: A Chronology and Troop List for the 1990–1991 Persian Gulf Crisis, U.S. Army War College, Strategic Studies Institute Special Report, March 25, 1991, p. 5, http://www.dtic.mil/dtic/tr/fulltext/u2/a234743.pdf (accessed June 26, 2017).

78. BBC News, “Iraq War in Figures,” December 14, 2011, http://www.bbc.com/news/world-middle-east-11107739 (accessed July 28, 2014).

79. Reuters, “Timeline: Invasion, Surge, Withdrawal; U.S. Forces in Iraq,” December 18, 2011, http://www.reuters.com/article/2011/12/18/us-iraq-usa-pullout-idUSTRE7BH08E20111218 (accessed June 22, 2017).

80. Julia Zorthian and Heather Jones, “This Graphic Shows Where U.S. Troops Are Stationed Around the World,” Time, October 16, 2015, http://time.com/4075458/afghanistan-drawdown-obama-troops/ (accessed August 2, 2016).

81. Charlsy Panzino and Andrew deGrandre, “The U.S. Is Sending 2,500 Troops to Kuwait, Ready to Step Up the Fight in Syria and Iraq,” Army Times, March 9, 2017, https://www.armytimes.com/articles/82nd-airborne-syria-iraq-kuwait-islamic-state (accessed June 22, 2017).

82. General Joseph L. Votel, Commander, U.S. Central Command, statement on “The Posture of U.S. Central Command” before the Committee on Armed Services, U.S. Senate, March 9, 2017, https://www.armed-services.senate.gov/imo/media/doc/Votel_03-09-17.pdf (accessed June 22, 2017).

83. Kenneth Katzman, “The United Arab Emirates (UAE): Issues for U.S. Policy,” Congressional Research Service Report for Members and Committees of Congress, February 28, 2017, p. 19, https://fas.org/sgp/crs/mideast/RS21852.pdf (accessed June 22, 2017).

84. Kenneth Katzman, “Oman: Reform, Security, and U.S. Policy,” Congressional Research Service Report for Members and Committees of Congress, April 26, 2016, p14, https://fas.org/sgp/crs/mideast/RS21534.pdf (accessed June 26, 2017).

85. Kenneth Katzman, “Bahrain: Reform, Security, and U.S. Policy,” Congressional Research Service Report for Members and Committees of Congress, April 13, 2017, p. 17, https://fas.org/sgp/crs/mideast/95-1013.pdf (accessed June 1, 2017).

86. Ibid., pp. 17–18.

87. U.S. Air Forces Central Command, “Wing Leadership Visits Eskan Village,” July 5, 2013, http://www.afcent.af.mil/Units/379thAirExpeditionaryWing/News/Display/tabid/5382/Article/350180/wing-leadership-visits-eskan-village.aspx (accessed June 22, 2017).

88. Votel, statement on “The Posture of U.S. Central Command.”

89. Ibid.

90. “Officials Say Three U.S. Service Members Killed in Jordan Attack,” Military Times, November 4, 2016, http://www.militarytimes.com/articles/jordan-american-trainer-air-base-shootout (accessed June 26, 2017).

91. BBC News, “CIA Operating Drone Base in Saudi Arabia, US Media Reveal,” February 6, 2013, http://www.bbc.com/news/world-middle-east-21350437 (accessed June 22, 2017).

92. “Israel and Iran: Closer to Takeoff,” The Economist, February 11, 2012, http://www.economist.com/node/21547297 (accessed June 22, 2017).

93. U.K. Royal Navy, “UK Minister Breaks Ground on Royal Navy HQ in Bahrain,” April 28, 2014, http://www.royalnavy.mod.uk/news-and-latest-activity/news/2014/april/28/140428-hq-in-bahrain (accessed June 22, 2017).

94. U.K. Ministry of Defence, “Multi-Million Pound Joint Venture Announced Between Britain and Oman,” March 30, 2016, https://www.gov.uk/government/news/multi-million-pound-joint-venture-announced-between-britain-and-oman (accessed June 22, 2017).

95. Frank Gardner, “‘East of Suez’: Are UK Forces Returning?” BBC News, April 29, 2013, http://www.bbc.com/news/uk-22333555 (accessed June 22, 2017).

96. Harriet Alexander, “Where Are the World’s Major Military Bases?” The Telegraph, July 11, 2013, http://www.telegraph.co.uk/news/uknews/defence/10173740/Where-are-the-worlds-major-military-bases.html (accessed June 22, 2017).

97. International Institute for Strategic Studies, The Military Balance 2017, p. 412.

98. Donna Miles, “Centcom Undertakes Massive Logistical Drawdown in Afghanistan,” Armed Forces Press Service, June 21, 2013, http://archive.defense.gov/news/newsarticle.aspx?id=120348 (accessed June 22, 2017).

99. Ibid.

100. U.S. Central Intelligence Agency, The World Factbook 2017, “Field Listing: Roadways: Country Comparison to the World,” https://www.cia.gov/library/publications/the-world-factbook/fields/2085.html (accessed June 22, 2017).

101. World Bank, “Rail Lines (Total Route-km),” 1980–2015, http://data.worldbank.org/indicator/IS.RRS.TOTL.KM/countries?display=default (accessed June 26, 2017).

102. Association of American Railroads, “U.S. Freight Railroad Industry Snapshot,” updated 2015, https://www.aar.org/data-center/railroads-states#state/NH (accessed June 22, 2017).

103. Anne Barnard, “Once Bustling, Syria’s Fractured Railroad Is a Testament to Shattered Ambitions,” The New York Times, May 25, 2014, http://www.nytimes.com/2014/05/26/world/middleeast/damascus-syria-hejaz-railway-station.html (accessed June 22, 2017).

104. Hendrick Simoes, “Work in Progress to Upgrade Facilities at Navy Base in Bahrain,” Stars and Stripes, April 11, 2014, http://www.stripes.com/news/work-in-progress-to-upgrade-facilities-at-navy-base-in-bahrain-1.277483 (accessed June 22, 2017).

105. Katzman, “Bahrain: Reform, Security, and U.S. Policy.”

106. Ibid.

107. Combined Maritime Forces, “CMF Commanders Speak on Maritime Security at Doha Maritime Defence Exhibition,” April 1, 2014, http://combinedmaritimeforces.com/2014/04/01/cmf-commanders-speak-on-maritime-security-at-doha-maritime-defence-exhibition/ (accessed June 22, 2017).

108. Suez Canal Authority, “Navigation Statistics,” http://www.suezcanal.gov.eg/English/Navigation/Pages/NavigationStatistics.aspx (accessed June 22, 2017).

109. Associated Press, “US Carrier Crosses Suez Canal into Red Sea,” The Times of Israel, November 8, 2013, http://www.timesofisrael.com/us-carrier-crosses-suez-canal-into-red-sea/ (accessed June 26, 2017).

110. U.S. Department of Energy, Energy Information Administration, “World Oil Transit Chokepoints,” last updated November 10, 2014, p. 4, http://www.eia.gov/beta/international/analysis_includes/special_topics/World_Oil_Transit_Chokepoints/wotc.pdf (accessed June 22, 2017).

111. U.S. Department of Energy, Energy Information Administration, “Oil Trade off Yemen Coast Grew by 20% to 4.7 Million Barrels per Day in 2014,” Today in Energy, April 23, 2015, http://www.eia.gov/todayinenergy/detail.cfm?id=20932 (accessed June 22, 2017).

112. Reuters, “Factbox—Some Facts on the Bab Al-Mandab Shipping Lane,” June 4, 2011, http://uk.reuters.com/article/2011/06/04/uk-yemen-shipping-bab-al-mandab-idUKTRE75241G20110604 (accessed June 22, 2017).

113. International Chamber of Commerce, Commercial Crime Services, “IMB Piracy Report Highlights Violence in West Africa,” July 15, 2013, https://www.icc-ccs.org/news/865-imb-piracy-report-highlights-violence-in-west-africa (accessed June 22, 2017).

114. See, for example, World Bank, “Logistics Performance Index: Quality of Trade and Transport-Related Infrastructure (1=Low to 5=High),” 2007–2016, http://data.worldbank.org/indicator/LP.LPI.INFR.XQ (accessed June 26, 2017).