"Kyrgyzstan is a small and poor Central Asian country that gained independence in 1991 with the breakup of the Soviet Union. The United States has been interested in helping Kyrgyzstan to enhance its sovereignty and territorial integrity, increase democratic participation and civil society, bolster economic reform and development, strengthen human rights, prevent weapons proliferation, and more effectively combat transnational terrorism and trafficking in persons and narcotics. [...] The significance of Kyrgyzstan to the United States increased after the September 11, 2001, terrorist attacks on the United States. Kyrgyzstan offered to host U.S. forces at an airbase at the Manas international airport outside of the capital, Bishkek, and it opened in December 2001. The U.S. military repaired and later upgraded the air field for aerial refueling, airlift and airdrop, medical evacuation, and support for U.S. and coalition personnel and cargo transiting in and out of Afghanistan. The Kyrgyz government threatened to close down the airbase in early 2009, but renewed the lease on the airbase (renamed the Manas Transit Center) in June 2009 after the United States agreed to higher lease and other payments. President Almazbek Atambayev has declared that he will call for changes in its status after the current basing agreement expires in 2014. In early 2012, the Manas Transit Center reported that it hosts about 1,500 U.S. troops and U.S. contractors and a fleet of KC-135 refueling tankers."
CRS Report for Congress, 97-690