| Operation Pony Express | |||||
|---|---|---|---|---|---|
| Part of Vietnam War | |||||
 Helicopters and pilots of the 20th SOS at a helicopter base designated Lima Site 20A, June 1969 | |||||
| |||||
| Belligerents | |||||
 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]
- ^ Rosenau p. 18
- ^ Dorr p. 54
- ^ Dunstan p. 169
- ^ Global Security's 20th Special Operations Squadron (20th SOS) retrieved June 6, 2007