Long Nguyen Secret Zone
The Long Nguyen Secret Zone was a geographical area of the South Vietnam, a heavily-forested area located between National [Route 13 (Vietnam)|Highway 13] and the Michelin Rubber Plantation about northwest of Saigon, in Binh [Duong Province] that served as a Viet Cong divisional sanctuary.
It was the site of numerous military operations during the Vietnam War, including: