The Collective Security Treaty was signed on 15 May 1992. Intensification of cooperation within the CST member-states led to creation of the Collective Security Treaty Organization (CSTO) in 2002.
The CSTO member-states include the Republic of Armenia, the Republic of Belarus, the Republic of Kazakhstan, the Kyrgyz Republic, the Russian Federation and the Republic of Tajikistan.
The collective security, stability, territorial integrity and sovereignty of member-states are the main principles of the activities of the CSTO.
The initiatives for foreign policy coordination within the CSTO, strengthening defense potential and in response to threats and challenges are in the focus of attention by the Republic of Armenia.