Chinese navy frigates Hengyang leaves the harbor during the Joint Sea-2015 (II) drill on Aug. 23, 2015 in Vladivostok, Russia. The Joint Sea-2015 (II) drill takes place from Aug. 20 to 28 in the Peter the Great Gulf, waters off the Clerk Cape, and the Sea of Japan, this is the second China-Russia naval exercise this year.(Xinhua/Sun Yanxin)
