Vessels and aircraft including the aircraft carrier Liaoning and latest submarines, vessels and fighter jets take part in a review in the South China Sea on April 12, 2018. Chinese President Xi Jinping, also general secretary of the Communist Party of China Central Committee and chairman of the Central Military Commission, reviewed the Chinese People's Liberation Army (PLA) Navy in the South China Sea Thursday morning and made a speech after the review. (Xinhua/Mo Xiaoliang)