Most of the focus on the Collective Security Treaty Organization has been its Central Asian activities, as Russia has positioned the new political-military bloc as its primary tool for preventing the spread of instability from Afghanistan toward its borders. But as Sergei Minasyan points out in a good piece for Russia in Global Affairs, it is in fact Armenia for whom the CSTO really holds strategic value. As he points out, among CSTO members (which include Russia, Armenia, Belarus, Kazakhstan, Kyrgyzstan and Tajikistan) only Armenia faces a threat of interstate conflict. (One might quibble with that, looking at increasing tensions between Uzbekistan and its neighbors Kyrgyzstan and Tajikistan, but certainly the threat of serious military conflict is much smaller there than between Azerbaijan and Armenia.) And the collective security requirements of the CSTO effectively make it impossible for Azerbaijan, in the event that it decides to try to take back its breakaway territory of Nagorno Karabakh, to widen the conflict into Armenia.
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