Civilian Irregular Defense Group (CIDG, pronounced "sid-gee") is one several South Vietnamese irregular military units during the Vietnam War. Manned by inhabitants of ethnic minority regions in the country (especially Montagnard), these were organized by the United States to counter Viet Cong influence in those regions. Most of these were converted to Vietnam Army Ranger units in 1970. National motto: ??? Official language Vietnamese Capital Saigon Last President Duong Van Minh Last Prime Minister Vu Van Mau Area  - Total  - % water 173,809km² N/A population  - Total  - Density 19,370,000 (1973 est. ... Irregular soldiers in Beauharnois, Quebec, 19th century Irregular military refers to any non-standard military. ... A military unit is an organisation within an armed force. ... Combatants Republic of Vietnam (South Vietnam) United States of America South Korea Thailand Australia New Zealand the Philippines Democratic Republic of Vietnam (North Vietnam) National Liberation Front (Viet Cong) Commanders Strength ~1,200,000 (1968) ~420,000 (1968) Casualties South Vietnamese dead: 1,250,000+ US dead: 58,226 US... The Degar (referred to by French colonists as Montagnard) are the indigenous peoples of the central highlands of Vietnam. ... A Viet Cong soldier, heavily guarded, awaits interrogation following capture in the attacks on Saigon during the festive Tet holiday period of 1968. ... 1970 (MCMLXX in Roman) was a common year starting on Thursday. ...

See Vietnam Studies, U.S. Army Special Forces 1961-1971, CMH Publication 90-23, Department of the Army, Washington, D.C. 1989 (First Printed, 1973)