Operation Pony Express

Operation Pony Express
Part of Vietnam War
Helicopters and pilots of the 20th SOS at a helicopter base designated Lima Site 20A, June 1969
Date 1965–1969 Location Across the borders of Laos, Cambodia and North Vietnam
Belligerents
United States 20th Helicopter Squadron Air America  South Vietnam  Thailand	North Vietnam

Operation Pony Express was the covert transportation of, and the provision of aerial support for, indigenous soldiers and material operating across the Laotian and North Vietnamese borders during the Vietnam War.^[1][2] It was provided by Sikorsky CH-3C helicopters of the US 20th Helicopter Squadron, the only USAF combat helicopter squadron in Vietnam,^[3] which had been transferred there in 1965 and was known as the "Pony Express".^[4]