The Collective Security Treaty Organization (CSTO; Russian: Организация Договора о коллективной безопасности, romanized: Organizatsiya Dogovora o kollektivnoy bezopasnosti; Russian: ОДКБ, romanized: ODKB) is an intergovernmental military alliance in Eurasia. CSTO consists of select post-Soviet states. The treaty had its origins in the Soviet Armed Forces, which was replaced by the United Armed Forces of the Commonwealth of Independent States, and then by the successor armed forces of the respective independent states. On 15 May 1992, six post-Soviet states belonging to the Commonwealth of Independent...