(center) co-founder of ISOC during field operation in 1974
Mission and organization ISOC's mission involves counterinsurgency, counterintelligence, counterterrorism, defend the monarchy, information and psychological warfare, internal security, promote unity, protect the public from harm, suppress threats to national security, and supporting assistance for victims of natural disasters. Nominally a civilian agency, ISOC operates under the aegis of the
Office of the Prime Minister (OPM). Prime Minister General
Prayut Chan-o-cha is director of ISOC. Deputy director is army chief General
Narongpan Jitkaewthae. ISOC's
FY2019 budget is 10,240.1 million
baht. ISOC has about 5,000-6,000 staff nationwide, excluding those working in the south, and there are 500,000-600,000 internal security volunteers, as well as tens of thousands of people in its information network.
Communist Suppression Operations Command The Communist Suppression Operations Command (CSOC) was established in 1964 with the assistance of the United States, with the aim of coordinating counterinsurgency and counterintelligence operations. Following the 17 November 1971 coup by military dictators
Thanom Kittikachorn and
Praphas Charusathien, Praphas appointed himself interior minister, chief of police, and head of CSOC. The CSOC was implicated in several atrocities in its 1970s war against leftist groups. This included the
Red Drum Massacre, the mass murder of southern Thai activists by burning them alive in gasoline drums. Student leader
Thirayuth Boonmee showed evidence that the destruction of Ban Na Sai village,
Bueng Kan District,
Nong Khai Province (,
Bueng Kan Province) in northeast Thailand was the handiwork of the CSOC. The military had earlier claimed that the
Communist Party of Thailand (CPT) was responsible for the village's destruction. CSOC's name was changed to ISOC in 1974. In 1973, the ISOC commenced a bombing campaign against
hill tribe villages in northern Thailand. To prevent guerrillas from using their forest bases, the ISOC destroyed nearly of forest annually between 1973 and 1978. ==Political intervention==