China's military will for the first time participate with Russia in massive joint exercises that are expected to be the largest war games since the fall of the Soviet Union as the U.S. rivals look to showcase their deepening ties.

The annual Vostok military drills will kick off late this month and run through mid-September, the Chinese Defense Ministry announced Monday. Military forces from the two countries will hold joint exercises at the Tsugol training range in Russia's Trans-Baikal region, near where the borders of Russia, China and eastern Mongolia meet, from Sept. 11 to 15, the ministry added.

China will send around 3,200 troops, along with more than 900 pieces of weaponry and 30 fixed-wing aircraft and helicopters, to conduct strike and counterattack training, among other drills, it said.