In 2018, South Korea hosted the XXIII Olympic Winter Games, with all events taking place in PyeongChang, South Korea, a county in Gangwon Province of South Korea which is approximately 80 miles east of Seoul. This marks only the third Winter Olympic Games in Asia (Sapporo in 1972 and Nagano in 1998).
It is noted that the South Korean and North Korean delegations marched into the Games' Opening Ceremony together under the Korean Unification Flag.
It is also noted that the 1999 Asian Winter Games was also held in Gangwon Province, including PyeongChang.
Postscript: In terms of total medal count at the PyeongChang Olympics, South Korea came in sixth place with a total of 17 medals (of which 5 were Gold Medals), making it the highest ranked Asian nation. The U.S. came in fourth place with a total of 23 medals (of which 9 were Gold Medals). (Norway came in first place in terms of total medal count with 39, of which 14 were Gold Medals).
Source: Public Domain
PyeongChang, South Korea Winter Olympics (2018)