The Long Nguyen Secret Zone was a geographical area of the

Republic of Vietnam South Vietnam, officially the Republic of Vietnam ( vi, Việt Nam Cộng hòa), was a state in Southeast Asia that existed from 1955 to 1975, the period when the southern portion of Vietnam was a member of the Western Bloc during part of th ...

, a heavily-forested area located between

Highway 13 The following roads may be referred to as Route 13 or Highway 13. For a list of roads named A13, see List of A13 roads. International * Asian Highway 13 * European route E13 * European route E013 Afghanistan *The Kabul–Behsud Highway - ...

and the

Michelin Rubber Plantation Michelin Rubber Plantation was located near Dầu Tiếng District in Bình Dương Province, 72 km northwest of Saigon. The plantation was established by the Michelin company in 1925 and at it was the largest rubber plantation in Vietnam. ...

about northwest of Saigon, in Binh Duong Province that served as a

Viet Cong , , war = the Vietnam War , image = FNL Flag.svg , caption = The flag of the Viet Cong, adopted in 1960, is a variation on the flag of North Vietnam. Sometimes the lower stripe was green. , active ...

divisional sanctuary. It was the site of numerous military operations during the

Vietnam War The Vietnam War (also known by #Names, other names) was a conflict in Vietnam, Laos, and Cambodia from 1 November 1955 to the fall of Saigon on 30 April 1975. It was the second of the Indochina Wars and was officially fought between North Vie ...

, including: *

Operation Bushmaster II Operation Bushmaster II (also known as the Battle of Ap Nha Mat) was a US Army operation that took place in the Michelin Rubber Plantation, lasting from 1 to 6 December 1965. Prelude On the evening of 27 November 1965 the Army of the Republic of ...

Operation Shenandoah II Operation Shenandoah II was a security operation conducted during the Vietnam War by the U.S. 1st Infantry Division to secure and repair Highway 13, South Vietnam from 29 September to 19 November 1967. Background For the 1967–1968 dry seaso ...

References

{{Coord, 11.209, N, 106.553, E, display=title Base areas of the Viet Cong