(Image: The Korean Unification Flag. Source: Sarago)
South and North Korea have been working on a dialogue for weeks, which mainly has focused on Olympic participation of North Korea. (These talks are subject to my post in progress, outlining a few major stories as I work my way back into publishing on this site.) Today, these talks have reached a broad deal which establishes a sweeping precedent for inter-Korean sports relations moving forward.
In Pyeongchang, the two Koreas will march under one flag (Wall Street Journal), the Unified Korea flag which shows an undivided peninsula in blue on a white background (Yonhap). However, the deal does not stop there. In Women’s Ice Hockey, the two Koreas will field a unified team; North Korea is set to send 230 member cheering squad and a 30 taekwondo demonstration team; and the North promised to send a 150 member delegation to the Paralympics in March (Yonhap).
The deal is a milestone in inter-Korean sports relations, though it may face some backlash. South Korean athletes have, in the past, balked at the idea of a unified team that places parity with North Korea over the hard work of South Korean athletes (New York Times). The deal, in South Korean political circles, is being argued as a start to thawing relations with North Korea. It also may enhance security around and during the Olympics as North Korea now has a stake in the outcome.
 This source is in Japanese and I have simply pulled the image.