TEHRAN, Young Journalists Club (YJC) - China and Russia have staged joint drills before but not on such a large scale, and the Vostok-2018 (East-2018) exercise signals closer military ties as well as sending an unspoken reminder to Beijing that Moscow is able and ready to defend its sparsely populated far east.
Vostok-2018 is taking place at a time of heightened tension between the West and Russia, and NATO has said it will monitor the exercise closely, as will the United States which has a strong military presence in the Asia-Pacific region.
Russia's Ministry of Defence broadcast images on Tuesday of columns of tanks, armoured vehicles and warships on the move, and combat helicopters and fighter aircraft taking off.
In one clip, marines from Russia's Northern Fleet and a motorised Arctic brigade were shown disembarking from a large landing ship on a barren shore opposite Alaska.
This activity was part of the first stage of the exercise, which runs until Sept. 17, the ministry said in a statement. It involved deploying additional forces to Russia's far east and a naval build-up involving its Northern and Pacific fleets.
The main aim was to check the military's readiness to move troops large distances, to test how closely infantry and naval forces cooperated, and to perfect command and control procedures. Later stages will involve rehearsals of both defensive and offensive scenarios.