America's Largest Military Bases Around the World

RAF Croughton is located in the central part of the United Kingdom, about 70 miles northwest of London. It was founded as a Royal Air Force base in 1938. After World War II, the base was deactivated and then given over to the U.S. military and has served as a communications hub for the U.S. Air Force.

Daegu is a major military facility operated by the United States in South Korea. It is located near the city of Daegu, the third most populous city in South Korea. The base was created in 1921 by the Japanese Empire, and the United States took it over after World War II.

The Ikego facility was an ammunition depot in Zushi City used by the Japanese Navy during World War II. The housing facility for the U.S. Navy opened in 1996 and has 853 units housing 2,500 family members who live on the base.

RAF Welford, the base for the 420th Munitions Squadron, is located 40 minutes south of Oxford. The base is the second-largest munitions storage area for conventional weapons in Europe and provides ammunition stores for all members of NATO.

The camp, named in honor of MSG Howard Hovey, a Distinguished Service Cross recipient who died during the Korean War, is strategically important. The camp is close to the city of Tongduchon, which is about 40 miles north of Seoul and just 11 miles south of the Demilitarized Zone. The purpose of the base is to deter aggression from North Korea. The camp is home to about 2,500 active duty American military personnel and several hundred civilians.

Lajes Field in Portugal is located on the island of Terceira in the Azores archipelago, about 900 miles west of Lisbon. Allied forces used the base during World War II. The facility is known as the “Crossroads of the Atlantic,” Lajes Field is an important installation for NATO countries — Portugal is one of 12 founding NATO members — because of its proximity to North Africa and the Middle East. The 65th Air Base Wing, the largest American military unit in the Azores, is stationed on the island.

Naval Air Station Keflavik near Grindavik was home to about 5,000 U.S. troops as recently as 2006. That year, the base that had served as a stopover for troops during World War II and the Cold War, was decommissioned. In recent years, however, the Navy decided to renovate a hangar that serves submarine-hunting aircraft in response to increased Russian Navy activity in the North Atlantic. The base is also located about 15 miles from a Naval radio transmitting station in Grindavik.

The Chitose Administration Annex is located on Hokkaido, the northernmost of Japan’s main islands known for its rugged terrain. An air base adjacent to the annex was used by the U.S. Air Force until 1957, when it was turned over to Japan.

RAF Fairford is located in Gloucestershire, about 40 miles northwest of Swindon in southern England. RAF Fairford is home to the 420th Air Base Squadron and serves as a primary European location for the U.S. Air Force’s Global Strike Command.

RAF Mildenhall is located in Suffolk in eastern England. The base is among the largest American installations in the U.K. The Royal Air Force began construction of the base in 1934. During World War II, the RAF used base was used for air combat missions. After the war, the base was deactivated until it came under the control of the U.S. military in 1950 as the Cold War escalated.

Marine Corps Air Station at Futenma began as an airfield constructed after the American victory over the Japanese at Okinawa. The base was renamed Futenma Air Base and mostly used in support of adjacent Kadena Air Base, another U.S. installation. In 1957, the Air Force transferred custody of the base to the Marines. Futenma is part of the Camp S.D. Butler complex that comprises 10 installations in Okinawa.

The American military presence at Aviano, about 50 miles north of Venice in the Dolomite Mountains, began after World War II. In 1954, the Italian and American governments signed a joint-use agreement, and a year later the base became the headquarters for the U.S. Air Force in Europe.

Naval Air Facility Atsugi in Japan is the only U.S. military facility in Asia with an entire air wing unit. The base, built in 1938 by the Japanese Imperial Navy on the island of Honshu, hosts a community of 10,000 people, including American and Japanese military personnel. Because of its strategic importance, facilities, and logistic services, this base is considered to be the “Tip of the Sword” of American security forces in the Western Pacific.

Camp Foster, located on Okinawa Island, is part of a complex of military installations that were developed after the United States defeated Japan in World War II. The facility was originally called Camp Zukeran, but changed its name to Camp Foster in honor of PFC William A. Foster, who won the Medal of Honor for flying perilous missions over Okinawa during the battle for the island. The camp had been the center of Marine Corps operations on Okinawa but its presence has diminished as the U.S. consolidated military facilities on Okinawa.

Osan Air Force Base, one of several active Air Force facilities operated by the U.S. military in South Korea, is located 40 miles from Seoul. The United States built the base from the ground up in 1953 up after capturing the area from communist troops. Osan Air Force Base hosts the 51st Fighter Wing.

Spangdahlem Air Base has been U.S. Air Force facility for more than 50 years. The base is in western Germany, near the borders of Belgium, Luxembourg, and France. Spangdahlem Air Base hosts the 52nd Fighter Wing.

The Yokota Air Base, opened in 1940 as a test facility for the Japanese Imperial Army, became an air base during World War II. The 374th Air Wing located there after the U.S. military took over the base and the unit was among the first to fight in Korea in 1950. Yokota, located on the island of Honshu, is a primary airlift wing in the Western Pacific. Every year in August, the base hosts a two-day Friendship Festival and invites the Japanese community to come to the base and learn about it.

RAF Lakenheath is located in Suffolk in the eastern region of England. It is the largest U.S. Air Force-operated base in England. The base traces its roots back to World War I. It was abandoned once the war was over, but as the threat of Nazi invasion rose in 1940, the facility was made to look like a functioning airfield to try and fool the German Luftwaffe and keep them from attacking the nearby RAF Mildenhall. The RAF eventually converted it into an operational facility, and the Americans took it over after the war and used it for operations during the Cold War.

Draughon Training Range is a desolate area in northern Japan that encompasses almost 1,900 acres and is not far from Misawa Air Force Base. Air Force and Navy pilots have been training at this facility since the Vietnam War, and their mission is the suppression of enemy air defenses, or SEAD. The base’s strategic location puts aircraft in position to meet challenges from North Korea.

Ie Jima Auxiliary Airfield takes up one-third of the small island Ie Jima, which is 3 miles west of Okinawa. The facility was built by Japan during World War II and taken over by the United States at the end of the war. Ie Jima is where the noted military correspondent Ernie Pyle was killed in action. The Marines use the base for training exercises such as parachute drops and Harrier aircraft landing exercises.

Camp Humphreys, or U.S. Army Garrison Humphreys, is located 40 miles south of Seoul, South Korea. It was created by the Japanese in 1919 during their occupation of the Korean Peninsula. After World War II, the Americans took over the base, and it was used by the U.S. Air Force during the Korean War. The United States is in the process of consolidating military presence in Korea into two hubs, the largest of which will be Camp Humphreys, tripling in size to 36,000 soldiers, family members, and civilians.

Camp Red Cloud, where U.S. troops had been deployed since the Korean War, closed in October 2018 as part of an ongoing military base consolidation program in South Korea. The camp has been targeted for closure since a 2004 agreement to trim the American military presence north of the Han River. Most American military personnel are stationed around the South Korean capital of Seoul and the heavily fortified bases near the Demilitarized Zone. The relocation was supposed to be completed by 2008 but was delayed because of construction issues at Camp Humphreys, which is increasing in size.

Camp Red Cloud was named after Medal of Honor recipient Cpl. Mitchell Red Cloud Jr.

Kunsan Air Base is one of several U.S. Air Force installations in South Korea and home of the 8th Fighter Wing. It is located 150 miles south of Seoul on the western side of the peninsula. The Japanese built the base in 1938, and the base became strategically important during the Korean War for missions against Chinese and North Korean positions.

The facility known as CFAY, for Commander Fleet Activities Yokosuka, is the largest and most important U.S. naval base in Asia — it is home of the 7th Fleet. The base is located 30 miles southwest of Tokyo and at the mouth of Tokyo Bay. It was built by Japan in 1871 to accommodate its growing trade in the 19th century, and the base is among the oldest of the overseas facilities of the United States.

Camp Casey sits in between the South Korean capital of Seoul and the Demilitarized Zone. Elements of the 2nd Infantry Division and the 210th Field Artillery Brigade are stationed at Camp Casey, which houses about 6,300 military personnel and about 2,500 civilians. At Camp Casey, U.S. and South Korean forces are integrated, a process that is occurring at other bases in South Korea.

The island base is located 15 miles off the coast of Oman. It originally belonged to the Royal Air Force before it was taken over by the United States in 1980 in an agreement with Oman. The U.S. Air Force built up the facilities, and the base became crucial during Operation Desert Shield in 1990.

The U.S. signed an access agreement for use of the Thumrait base with Oman in 1981. It is one of three Air Force sites that support equipment and materiel needs for 26,000 military personnel in the small Persian Gulf nation. Thumrait is what the Air Force calls a Harvest Falcon depot that provides transportable tents, shelters, equipment, and vehicles.

The base operates at Muscat International Airport in Oman and features two runways that have been extended to 13,123 feet. Military equipment is stored at that location. The base was part of the access agreement between the United States and Oman for use of one of several military sites in Oman that support equipment and materiel needs for U.S.military personnel.

Ramstein was built in 1951 out of a swamp in western Germany near the French border. Ramstein hosts the 86th airlift unit. The area is also called “little America” because of the 50,000 U.S. personnel who reside in the region. Ramstein, as well as other U.S. bases in Germany, has been the site of protestors who want the United States to close military bases in Germany. In 1988, Italian stunt planes collided and crashed during an air show at Ramstein. The collisions killed 70 people.

Since it opened in 1951, Incirlik Air Base has been jointly operated by the United States and Turkey. Because of its relative proximity to Russia, the base, where 5,000 military personnel are stationed, are considered strategically important. In recent years, the United States has used Turkish bases to launch strikes against terror groups like ISIS in Syria and Iraq. Recent disagreements between the United States and Turkey have led the U.S. to reconsider its military presence in the strategically important nation.

The base is located in the rural Yong Pyong region in northern South Korea. It is a training center for armored units to conduct gunnery training, often using live fire. Units of the 2nd Infantry Division use the facility for training in helicopter, Bradley Fighting Vehicle, M1 Abrams tank, artillery, and close air support.

Morón Air Base, located in the Andalusia region in southern Spain, is home to the 496th Air Base Squadron. The U.S. military stations about 3,000 people at the base, which has been used for operations against Libya as well as assistance in the humanitarian crisis of North African refugees. Morón Air Base hosts units of the Air Mobility Command, Air Force Space Command, and Air Force Office of Special Investigations.

Ascension Island in the South Atlantic was originally used as a base by the Royal Navy to interdict the slave trade. Ascension Island took on greater importance during World War II, when the British allowed the United States to build an airstrip there that would become Ascension Auxiliary Airfield. American planes landed there from Brazil and continued north through Africa. The U.S. military augmented the facilities during the Cold War, and the base was used to launch research rockets to track Apollo missions.

Misawa Air Base, about 400 miles north of Tokyo on Honshu Island, is important in Japanese military history. It was here that pilots trained for the attack on Pearl Harbor and where the Japanese Empire trained kamikaze pilots. About 90% of the base was destroyed by Allied bombing during World War II. Today, the base combines military personnel from the United States and Japan. Among the objectives of the base is space surveillance through the use of satellites. The base is home to the 35th Fighter Wing.

The Kadena Air Base located in Okinawa City, Okinawa, Japan, is anchored by the 18th Wing, a fleet of 81 combat-ready aircraft that constitutes one of the largest operational combat wings overseas. Kadena is home to about 8,000 American air personnel. The United States captured the airstrip from Japan hours into the battle for Okinawa, repaired the damaged runway, and made it operational days later.

The Naval Communication Station Harold E. Holt in western Australia, a joint operation of the United States and Australia, comprises three sites about 37 miles apart located on a peninsula that separates the Exmouth Gulf from the Indian Ocean. The station was set up in 1967 and intended to provide the Navy with the ability to communicate with submarines and surface vessels in the Indian and western Pacific Oceans. Plans call for the station to be used for space surveillance and global military intelligence.

Camp Schwab is a U.S. military base on the island of Okinawa. It was named in memory of PFC Albert E. Schwab, a Marine who won the Medal of Honor for bravery during the Battle of Okinawa in 1945. It became a permanent military facility in 1959 and serves as a training range for the troops stationed on the island.

Naval Station Rota, located in southern Spain, was established in 1953. It provides logistical support and serves as a strategic presence in the eastern Mediterranean Sea. It supports U.S. naval forces in Europe and Africa that include the 6th Fleet at a nearly 6,000-acre facility. The base also includes a 670-acre airfield and the biggest fuels and weapons facilities in Europe. Rota is home to more than 3,000 Navy sailors, Marines, and their families. The base also has smaller Army and Air Force attachments.

The ammunition depot adjacent to Kadena Air Base at Chibana in Japan once stored one of the largest arsenals of lethal weapons on the planet. Included in the depot were nuclear warheads, herbicides, and sarin gas. Chemical weapons leaked from the depot on two occasions in the late 1960s and early 1970s, hospitalizing 27 Americans.

Diego Garcia, which is home to a naval support facility, is a speck in the Indian Ocean, an atoll of the Chagos Archipelago located just south of the equator. The base provides service, installation, and logistic support for American and NATO vessels and aircraft deployed in the Indian Ocean and Arabian Gulf regions. The United States and Great Britain signed a formal agreement in 1966 to use Diego Garcia for mutual defense needs.

Marine Corps Air Station Iwakuni, Japan, is located about 600 miles southwest of Tokyo on the island of Honshu. The base hosts about half of the 1st Marine Aircraft Wing, which is headquartered on Okinawa, as well as other Marine group elements. There are about 15,000 personnel, including U.S. Marines and Japanese national employees, at the station.

Like many of the U.S. bases in Japan, the facility has its roots with the Japanese Empire, which developed the farmland as an air station at the outset of World War II. After the war, the base came under the command of the Royal Australian Air Force, then passed to several branches of the U.S. military until the Marines took over the facility in 1958.

Commander Fleet Activities Sasebo, Japan, on the island of Kyushu in the Nagasaki Prefecture, is an example of cooperation between the United States and Japan, where the ships of the Japan Maritime Self Defense Force and the American 7th Fleet share the port. Japan established a naval base there in 1889. The Japanese Empire employed 50,000 people at Sasebo during World War II, and after the United States took over the base in 1946, it served as the main launch area for United Nations involved in the Korean War.

Camp Gonsalves, commissioned in 1958, covers about 27 square miles of jungle, an important geographical feature for the American military to familiarize itself with jungle warfare in Vietnam in the 1960s. The camp was named after PFC Harold Gonsalves, a Marine who received the Medal of Honor for bravery during the battle for Okinawa in World War II. The camp also goes by the name of JWTC, short for Jungle Warfare Training Center.

Camp Hansen, named after Medal of Honor winner Marine Pvt. Dale M. Hansen for heroism during the battle for Okinawa, is located at the northern part of the island. It is one of several U.S. military bases on Okinawa. American troops today conduct training exercises using live fire there. Japanese troops use the base as well. Last year, the U.S. and Japanese government announced that 100 buildings will be constructed at Camp Hansen as part of relocation efforts to consolidate military facilities on the island.

Camp Santiago, also called Campamento Santiago, is a military training facility in Puerto Rico, where the Puerto Rican National Guard is stationed. The camp is named after Hector Santiago-Colon, who was awarded the Medal of Honor for heroism during the Vietnam War — one of four Puerto Ricans to be so honored. U.S. troops were trained at the camp during World War II to guard the Panama Canal. It was taken over by the Puerto Rican government in 1967 and now encompasses 300 buildings.

The Naval Base Guam Tinian provides support for the 7th Fleet and is responsible for an area nearly as large as the western United States. As part of the Navy’s plans to relocate assets, the Navy wants to use the Northern Marianas islands of Tinian and Pagan for live-fire training. This has drawn criticism from residents of the Northern Marianas who say this would have an adverse ecological impact on the region. About 3,000 people live in Tinian.

Andersen Air Force Base, Guam, is located on the north end of the island, and is about 15 miles from Agana, the capital. The base was used as a staging area for B-29 raids on Japanese targets during World War II. The primary role of the base after World War II has been as a Strategic Air Command base, in support of missions in Korea and Vietnam. When tensions mounted between the United States and North Korea, it was feared that the communist nation might target Anderson Air Force Base, since Guam is the closest U.S. territory to North Korea.

The naval station at Guantanamo Bay, sometimes truncated to “Gitmo,” is located in southeastern Cuba. The United States has leased the land the base sits on from Cuba since 1903, after the Spanish-American War, and the lease can be terminated only by mutual agreement. The two countries signed a perpetual lease in 1934 that costs America $4,085 a year. Cuba views the facility as a vestige of American imperialism. Detention facilities at the base are used to house combatants involved in the war on terror. About 6,000 people live on the Guantanamo Bay naval base, and more than a third are Jamaican and Filipino workers.

Camp Fuji is located on the island of Honshu and is less than two-hours from Tokyo. The area of present-day Camp Fuji was used as a training ground for samurai warriors since at least the late 12th century during the Kamakura Feudal Government era. The Fuji Maneuver Area is used by both the U.S. and Japanese military and it contains live-fire ranges. The U.S. Army trained at the camp before it was deployed during the Korean War, before the Marines and Japanese defense forces took over the camp in the 1950s.

Thule Air Base in Greenland is by far the largest military base overseas by physical size. It also enjoys another superlative — it is the northernmost base of any U.S. installation, 750 miles from the Arctic Circle. Thule, headquarters of the 821st Air Base Group, is one of the most isolated bases in the world and home to about 200 military personnel. It was originally built for defense purposes during the Cold War. Because of saber-rattling from North Korea and renewed concerns over Russian territorial ambitions, the United States recently completed an overhaul of missile defense systems there. Its radar system got a $40 million software upgrade.