Flag bearer of the Democratic People's Republic of Korea (DPRK) Hwang Chung-gum (L) and flag bearer of South Korea Won Yun-jong march together under a unified Korean flag during the opening ceremony of the 2018 PyeongChang Winter Olympic Games at PyeongChang Olympic Stadium in PyeongChang, South Korea, Feb. 9, 2018. (Xinhua/Lui Siu Wai)