was one of the quintessential Cold War insurgency/counterinsurgency, low-intensity conflicts and offers many lessons in the conduct of irregular covert operations supported by modern military technology. It also remains one of only a few military operations of the Vietnam War about which both major belligerent parties (the U.S. and North Vietnam) are still reluctant to discuss openly their participation. For the North Vietnamese, this is understandable. Hanoi has no more incentive to discuss its operations today than it had in the 1960s or 1970s. Although the U.S. has been more open about its participation, the covert war remains a touchy subject. References Sources Published government documents Littauer, Raphael and Norman Uphoff, eds. The Air War in Indochina. Boston: Beacon Press, 1972. Nalty, Bernard C., [https://media.defense.gov/2010/Oct/06/2001329752/-1/-1/0/AFD-101006-027.pdf The War Against Trucks: Aerial Interdiction in Southern Laos, 1969–1972]. Washington DC: Air Force History and Museums Program, 2005. Schlight, John, The War in South Vietnam: The Years of the Offensive, 1965–1968. Washington DC: Air Force History and Museums Program, 1999. Secondary sources Hobson, Chris, Vietnam Air Losses: United States Air Force, Navy, and Marine Corps Fixed-Wing Aircraft Losses in Southeast Asia, 1961–1973''. Hinckley, UK: Midland Publishing, 2001. Biography Aerial operations and battles of the Vietnam War Conflicts in 1964 Conflicts in 1965 Conflicts in 1966 Conflicts in 1967 Conflicts in 1968 Conflicts in 1969 Conflicts in 1970 Conflicts in 1971 Conflicts in 1972 Conflicts in 1973 Barrel Roll Barrel Roll Barrel Roll Barrel Roll 1964 in Vietnam 1965 in Vietnam 1966 in Vietnam 1967 in Vietnam 1968 in Vietnam 1969 in Vietnam 1970 in Vietnam 1971 in Vietnam 1972 in Vietnam 1973 in Vietnam Battles and operations of the Vietnam War in 1964 Battles and operations of the Vietnam War in 1965 Battles and operations of the Vietnam War in 1966 Battles and operations of the Vietnam War in 1967 Battles and operations of the Vietnam War in 1968 Battles and operations of the Vietnam War in 1969 Battles and operations of the Vietnam War in 1970 Battles and operations of the Vietnam War in 1971 Battles and operations of the Vietnam War in 1972 Battles and operations of the Vietnam War in 1973 Barrell Roll Laotian Civil War