Japan is keeping a close watch on the Chinese navy's activities in waters around the nation after fighter jets and helicopters were seen taking off from and landing on a Chinese aircraft carrier off the southwestern prefecture of Okinawa, the top government spokesman said Monday.The activities could be part of China's efforts to bolster its joint aerial and maritime operational capabilities in the Pacific, and Japan will continue to take heed of the situation and keep up surveillance at sea and in the air, Chief Cabinet Secretary Hirokazu Matsuno told a press briefing.The Chinese navy's flo…READ FULL ARTICLE