The exercise will last until July 10, Russian Defense Minister Sergei Ivanov told a press conference in Dushanbe, Tajikistan, following a meeting of the CIS Council of Defense Ministers.
The Russian Air Force, the Baltic Fleet's anti-aircraft defense units and Belarus' anti-aircraft defense troops are taking part in the exercises.
"The second phase will take place on Kazakhstan territory in Saryshagan, from August 5-12," Ivanov said.
The second phase involves Kazakhstan's air force units and Kyrgyzstan's anti-aircraft units.
The third phase will be held in Ashuluk, Russia's Astrakhan region on the Volga, from August 22-31. Field firing practice is scheduled for August 30.
That phase is designed to train interaction between Armenia's anti-aircraft defense forces, Belarus' air force and anti-aircraft defense units, Russia's air forces, and Tajikistan's anti-aircraft defense forces. Kazakhstan's airborne defense forces officials will observe.
Ivanov said the CIS defense ministers had discussed the idea behind the exercises at their meeting today.
"The council approved the idea behind the exercises whose participants are expected to train using national forces and anti-aircraft defenses in the Eastern European, Caucasian and Central Asian regions of the collective security zone," Ivanov said.
The council looked into the CIS Coordinating Committee on Anti-Aircraft Defense activities and outlined the major areas in which to develop the CIS' unified anti-aircraft defense system between 2006 and 2010.
The defense ministers also discussed flight safety figures from 2004, decided on a schedule of joint events for 2006, approved documents on the international classification of the Armed Forces' supplies and approved a CIS organization to do research in military metrology and ensure metrological support.
