China and Russia will hold joint naval and air defence drills in the Sea of Japan, China said on Thursday, the latest exercises between the two countries which could concern Japan, involved in a marine dispute with China to the south, Reuters reported. The exercises, which will take place from Aug. 20-28, will take place in the Gulf of Peter the Great, which lies off the strategic Far Eastern Russian port city of Vladivostok, and in the Sea of Japan, Chinese Defence Ministry spokesman Yang Yujun told a monthly news briefing. The drills will include anti-submarine and anti-ship exercises. Chinese fighter jets, destroyers, frigates and supply vessels will take part, Yang said. The Russian side plans to dispatch ships, submarines and fixed-wing aircraft, he added. Both sides will send helicopters and marines, Yang said.