High Quality Content by WIKIPEDIA articles! Uzbekistan joined the Commonwealth of Independent States in December 1991. However, it is opposed to reintegration and withdrew from the CIS collective security arrangement in 1999. Since that time, Uzbekistan has participated in the CIS peacekeeping force in Tajikistan and in United Nations-organized groups to help resolve the Tajik and Afghan conflicts, both of which it sees as posing threats to its own stability. Uzbekistan is an active supporter of U.S. efforts against worldwide terrorism and joined the coalitions which have dealt with both Afghanistan and Iraq (although, in 2005, relations with the U.S. were strained after the May 2005 unrest and Uzbekistan demanded that the U.S. leave Karshi-Khanabad). It is a member of the United Nations, the Euro-Atlantic Partnership Council, Partnership for Peace, and the Organization for Security and Cooperation in Europe (OSCE). It belongs to the Organisation of Islamic Cooperation (OIC) and the...