From 2009 with relevancy today:
Chinese soldiers march during a parade marking the end of joint Russian-Chinese military exercises at Chebarkul testing range on 17 August, 2007. The presidents of Russia and China attended the joint military exercises. (MAXIM MARMUR/AFP/Getty Images)
Russia and China are now better prepared to fight together than Britain and America were before World War ii.
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“Anti-Terrorist” Exercises
Although the two don’t always see eye to eye, Russia and China today have a strong military alliance, largely to counter mutual foes. The two nations have already signed a de facto defense pact.
Russia and China held their first set of war games in 2005. These were labeled “anti-terrorist” exercises, but in reality they were far more—involving over 10,000 troops, warships and airplanes. They simulated landing attacks against hostile shores and even featured large-scale paratroop drops. Experts believe they may have been a trial run for a joint Russia-China invasion of Taiwan, or for supporting a Central Asian government against an American-backed insurgency.
Global Geopolitics 