Operation Barrel Roll was a covert interdiction and close air support campaign conducted in the Kingdom of Laos by the U.S. Air Force 2nd Air Division and U.S. Navy Task Force 77 between 5 March 1964
Barrel Roll operational area, 1964
North American T-28Ds in Laos
The Cessna O-1 Bird Dog FAC aircraft was unmarked when flown by Raven Forward Air Controllers.
Cessna O-2 Skymaster FAC aircraft
The Battle of Lima Site 85, also called Battle of Phou Pha Thi, was fought as part of a military campaign waged during the Vietnam War and Laotian Civil War by the North Vietnamese People's Army of Vi
The U.S. facility atop of Phou Pha Thi, known as Lima Site 85, was the site of a major battle on 10 March 1968.
An Air Combat First – CIA painting of Air America helicopter engaging 2 VPAF An-2 biplanes
The configuration of LS-85 mountaintop area included radar shelters ("Operations") with antennas and interior equipment normally in/on mobile AN/MSQ-77 "control and plotting" and radar vans. "TACAN" is the box shelter for the AN/TRN-17 electronics with antenna on top, and "LZ" is for the nearby helicopter Landing Zone. Also not shown are the CIA airstrip and command post.