FILE - Chinese soldiers based in Hong Kong demonstrate their skill at the Shek Kong barracks of People's Liberation Army (PLA) Garrison during an open day to celebrate the upcoming 21st anniversary of the city's return to Chinese sovereignty from British rule in Hong Kong on June 30, 2018. China's military says the former head of internal security in the Xinjiang region will lead the People's Liberation Army's garrison in Hong Kong, in the latest in a series of moves aimed at bringing the semiautonomous city under Beijing's tight control. (AP Photo/Kin Cheung, File) FILE
