Anti-aircraft forces of Armenia, Kyrgyzstan, Kazakhstan, Russia and Tajikistan participated today in Military Cooperation-2005 CIS exercise, Yerkir online reported. Military units of the CSTO member-states took part in the maneuvers. Upon completion of the sitting of the CIS Defense Ministers in Dushanbe Russian Defense Minister Sergey Ivanov noted that the Council has ratified the initiative of military exercise, according to which the exercise participants should settle issues of joint use of national forces of air-raid defense in the Western European, Caucasian and Central Asian regions of the CSTO. S. Ivanov also noted that the exercise will be held within three phases, the first and third of which will be held in Russia and the second – in Kazakhstan.