The Korean Unification Flag (Korean: 통일기; lit. Unification Flag), also known as the Flag of the Korean Peninsula (Korean: 조선반도기 or 한반도기), is a flag used to represent all of Korea. When North Korea and South Korea participate as one team at international sporting events, the flag is carried by the unified team. It was introduced at the 1990 Asian Games but not used by a unified team until the 1991 World Table Tennis Championships. It is a white field charged with a sky blue silhouette of the Korean Peninsula, Jeju Island, and Ulleungdo. The flag's depiction of Korean territorial claims has earned it the chagrin of Japan, which claims the Liancourt Rocks. The disputed islets were added to the flag in 2003 but removed in 2018 upon the request of the International Olympic Committee (IOC). Outside of sports, the flag has been used, particularly in North Korea, to express support for Korean reunification.