Japan and China continue to dispute over the ownership of the Senkaku/Diaoyu islands in the East China Sea, with Taiwan also asserting its claim to the islands.
Japan deployed missile squads to Ishigaki Island, near the Senkaku islands, in response to China's increasing military activities in the waters around the islands.
China claims that the Diaoyu islands belong to it and accuses Japan of violating Chinese sovereignty.
The Japanese coast guard, meanwhile, accuses the Chinese coast guard of violating Japanese territorial waters around the disputed East China Sea islets.
Japan and China's dispute over the Senkaku/Diaoyu islands continues to escalate.
Japan has deployed military units, including missile squads, to a garrison on Ishigaki Island in response to China's intensified military activities in the waters around the islands.
Meanwhile, China sent coast guard vessels to expel illegal Japanese vessels from its territorial waters.
China has called Japan's territorial claims over the disputed waters a grave violation of Chinese sovereignty.
Japan, on the other hand, accuses China of violating Japanese territorial waters around the disputed East China Sea islets.
The tensions between the two countries have long been a sticking point in their bilateral ties, with neither side backing down over their respective territorial claims.