The final stage of the "Peace Mission 2007" anti-terror drill, sponsored by the Shanghai Cooperation Organization (SCO), began Friday in Chelyabinsk in Russia's Ural Mountains region.
Leaders and defense ministers from SCO's six member countries gathered in the Chebarkul military range near Chelyabinsk in the morning to observe the drill, which is also due to end on Friday.
After being briefed by the general commanders of the joint drill about the exercise, the SCO leaders took their seats at the reviewing stand.
The exercise, which started on Aug. 9, was carried out first in Urumqi, capital of China's Xinjiang Uygur Autonomous Region, and later in Chelyabinsk.
About 4,000 troops and 80 aircraft from China, Kazakhstan, Kyrgyzstan, Russia, Tajikistan and Uzbekistan are participating in the joint exercise.
SCO member states hope that the exercises that involve military forces from all SCO member countries would help intensify their exchanges and cooperation in defense and security, enhance the capabilities of their armed forces in collectively countering terrorism and promote regional peace, security and stability.