page_title: Collective Security Treaty Organization
section_title: Member states
hierarchical_section_title: Collective Security Treaty Organization / Member states
caption_attribution_description: English: Stamps of Kazakhstan, 2012
context_page_description: The Collective Security Treaty Organization is an intergovernmental military alliance that was signed on 15 May 1992. In 1992, six post-Soviet states belonging to the Commonwealth of Independent States—Russia, Armenia, Kazakhstan, Kyrgyzstan, Tajikistan, and Uzbekistan—signed the Collective Security Treaty. Three other post-Soviet states—Azerbaijan, Belarus, and Georgia—signed the next year and the treaty took effect in 1994. Five years later, six of the nine—all but Azerbaijan, Georgia, and Uzbekistan—agreed to renew the treaty for five more years, and in 2002 those six agreed to create the Collective Security Treaty Organization as a military alliance.
  Nikolai Bordyuzha was appointed secretary general of the new organization. On 23 June 2006, Uzbekistan became a full participant in the CSTO; and its membership was ratified by the Uzbek parliament on 28 March 2008. It suspended its membership in 2012. The CSTO is an observer organization at the United Nations General Assembly.
  The CSTO charter reaffirmed the desire of all participating states to abstain from the use or threat of force.
context_section_description: Member states of the Collective Security Treaty Organization:
  Observer states of the Collective Security Treaty Organization:
  Former member states of the Collective Security Treaty Organization:
caption: Stamp of Kazakhstan, 2012
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