The Counterintelligence Service or KOS (; ; ) was the counterintelligence service of the Yugoslav People's Army (JNA) that existed from 1946 until the breakup of Yugoslavia in 1991. In 1992, the Security Administration continued its work in Serbia and Montenegro. Founding and structure KOS was formed in 1946 as one of the remnants of the Department for Protection of the People (OZNA), with State Security Administration (UDBA) forming the second, civilian, component of the new security and intelligence structure of SFR Yugoslavia. In 1955 changed its name to Security Administration and relocated from the General Staff to State Secretariat of People's Defence, later Federal Secretariat of Peoples Defence. Activities Most information is still scant due to its classification as military secret, but some can be traced in the media, especially during the Milošević tenure and the role played in the break-up of SFRY (e.g. Operation Labrador). See also Department for Protection of the People (OZNA) State Security Administration (UDBA) Yugoslav People's Army Security Administration (FR Yugoslavia) References External links International Criminal Tribunal for the former Yugoslavia, 'questioning' transcripts on Operations "Labrador" and "Opera". KOS @ GlobalSecurity.org 1946 establishments in Yugoslavia Government agencies established in 1946 1991 disestablishments in Yugoslavia Government agencies disestablished in 1991 Yugoslav intelligence agencies Socialist Federal Republic of Yugoslavia Military intelligence agencies Military of SFR Yugoslavia