Chinese President Xi Jinping (L, front), also general secretary of the Communist Party of China Central Committee and chairman of the Central Military Commission, talks with scientists and technicians, asking them about their research, work and lives, as he visits a military base in southwest China's Sichuan Province, Feb. 10, 2018. Xi extended festival greetings to all officers and soldiers of the People's Liberation Army and the armed police force, and all militia and reserve personnel. (Xinhua/Li Gang)