Al Udeid Air Base () is one of two military bases southwest of Doha, Qatar, also known as Abu Nakhlah Airport (). It houses the Qatar Emiri Air Force, United States Air Force, Royal Air Force, and other foreign forces. It is host to a forward headquarters of United States Central Command, headquarters of the United States Air Forces Central Command, No. 83 Expeditionary Air Group RAF, and the 379th Air Expeditionary Wing of the USAF. In 1999, the then Emir of Qatar, Sheikh Hamad, told U.S. officials that he would like to see as many as 10,000 U.S. servicemen permanently stationed at Al Udeid. According to media reports in June 2017, the base hosted over 11,000 U.S. and U.S.-led anti-ISIL coalition forces and over 100 operational aircraft. It is the largest U.S. military base in the Middle East. History United States Air Force Following joint military operations during Operation Desert Storm in 1991, Qatar and the United States concluded a Defense Cooperation Agreement that has been subsequently expanded. In 1996, Qatar built Al Udeid Air Base at the cost of more than $1 billion. The U.S. first used the then-secret base in late September 2001, when the Air Force needed to get aircraft in position for its operations in Afghanistan. The U.S. has nearly 40,000 military personnel in the Middle East. The U.S. Fifth Fleet is in Bahrain and has 28,000 military personnel in Kuwait, Bahrain and Qatar. Kingdoms, including Qatar, cover 60 percent of the costs, around $650 million. The official acknowledgement of the base came in March 2002, when Vice President Dick Cheney stopped there during a trip to the region with a group of reporters. In April 2003, shortly after the start of the U.S.-led invasion of Iraq, the U.S. Combat Air Operations Center for the Middle East moved from Prince Sultan Air Base in Saudi Arabia to what was then a backup headquarters built a year prior in Qatar that was viewed as a more congenial location for basing U.S. troops. Al Udeid and other facilities in Qatar serve as logistics, command, and basing hubs for the U.S. Central Command (CENTCOM) area of operations, and oversees U.S. air operations in countries, including Iraq, Afghanistan, and Syria. Royal Air Force Between 2004 and 2009 the airbase was used by the Royal Air Force with transport and fast-jet aircraft to support Operation Telic (Iraq War) and Operation