PLA monitors, expels US guided-missile destroyer in China’s Xisha territorial waters. The Southern Theater Command will always stay on high alert, resolutely defending national sovereignty, security, and the peace and stability in the South China Sea, Tian added. 解放軍在中國西沙領海監視並驅逐美國飛彈驅逐艦。 南部戰區將始終保持高度戒備，堅決捍衛國家主權安全和南海和平穩定.