TENSION HEATS UP - CHINA WARNS OF MILITARY CONFLICT RISK FLIGHTS OVER SOUTH CHINA SEA
The US sent a warship through the Taiwan Strait on the same day, marking the sixth passage of the strait by a US Navy vessel this year.
The US Indo-Pacific Command the US Navy had conducted a mine warfare training exercise in the East China Sea.
China is also upgrading its military strength in the region.
It put two new upgraded nuclear-powered strategic submarines into service last month and it is also considering the launch of a new generation of strategic bomber, the Xian H-20 supersonic stealth bomber, possibly within this year.