The Defense Counterintelligence Command (DCC; Korean: 국군방첩사령부) is an intelligence organization of the Republic of Korea Armed Forces.

It was founded as the Army Counter Intelligence Corps (commonly known as CIC or KACIC;[5][6] meaning: Special Operation Forces) on 21 October 1950.

[1][2] Chun Doo-hwan became chief of the Defense Security Command (DSC; 국군기무사령부; 國軍機務司令部) in February 1979, eight months before Park Chung Hee was assassinated on October 26, 1979.

From his position as commander of the DSC, Chun effectively became chief investigator of the assassination, said Don Oberdorfer in his book The Two Koreas.

[15][16] in December 2024, Defense Counterintelligence Command was involved in another self-coup plan for President Yoon Suk Yeol.