Song Tao, special envoy of General Secretary of the Communist Party of China (CPC) Central Committee Xi Jinping and head of the CPC Central Committee's International Department, pays homage to the martyrs of the Chinese People's Volunteer Army at a cemetery in Hoechang County, South Phyongan Province of the Democratic People's Republic of Korea, Nov. 19, 2017. (Xinhua/Cheng Dayu)