The Joint Advisory Commission, Korea (JACK; ) was a U.S. covert operations unit that participated in the Korean War.
Operating under the direction of the Central Intelligence Agency, JACK was responsible for inserting and extracting U.S.-trained Korean agents into North Korea, conducting covert maritime raids along the North Korean coast, and providing escape and evasion support for downed Air Force pilots.
Yong-do Group () based in Yeongdo District, Busan was the main guerrilla unit.
See also Korea Liaison Office 8240th Army Unit United Nations Partisan Infantry Korea Former United States special operations units Special Activities Division
References
External links JACK Operations & Activities