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Operation Commando Hunt was a covert U.S. Seventh Air Force and U.S. Navy Task Force 77 aerial interdiction campaign that took place during the Vietnam War. The operation began on 11 November 1968 and ended on 29 March 1972. The objective of the campaign was to prevent the transit of People's Army of Vietnam (PAVN) personnel and supplies on the logistical corridor known as the Ho Chi Minh Trail (the Truong Son Road to the North Vietnamese) that ran from the southwestern Democratic Republic of Vietnam (North Vietnam) through the southeastern portion of the Kingdom of Laos and into the Republic of Vietnam (South Vietnam). == Interdiction (1964–1968) == Systematic U.S. aerial operations against the Ho Chi Minh Trail had begun on 14 December 1964 with Operation Barrel Roll.〔For a detailed history of the interdiction effort from 1961 to 1968, see Jacob Van Staaveren, ''Interdiction in Southern Laos, 1961–1968''. Washington, D.C.: Center of Air Force History, 1993.〕 With the onset of Operation Rolling Thunder, the strategic aerial bombardment of North Vietnam in April 1965, the U.S. also expanded its interdiction effort in Laos by dividing the ''Barrel Roll'' area into two sections on 3 April.〔John Morocco, ''Rain of Fire''. Boston,: Boston Publishing Company, 1985, pp. 27–28.〕 The former operation would continue in northeastern Laos while Operation Steel Tiger was initiated in the southern panhandle. The American headquarters in Saigon requested, and received, authorization to control bombing in the area adjacent to South Vietnam's northern provinces in Operation Tiger Hound on 3 December 1965.〔Van Staaveren, pp. 96–101.〕 The U.S. Air Force had already begun to up the ante in its anti-infiltration campaigns by unleashing B-52 Stratofortress bombers against the trail in December 1965.〔Morocco, p. 28.〕 From April through June 1966 there were 400 B-52 anti-infiltration sorties against the system.〔John Schlight, ''A War Too Long'', Washington, D.C.: Center for Air Force History, 1993 p. 55.〕 The PAVN countered this effort by concentrating more anti-aircraft artillery weapons within its logistical network. Between 1964 and the end of 1967 there were 103,148 tactical air sorties launched against the trail, including 1,718 B-52 strikes.〔Van Staaveren, p. 287.〕 During the same timeframe 132 U.S. aircraft or helicopters were shot down over Laos.〔Schlight, p. 58.〕 And so matters stood until the massive PAVN/NLF Tet Offensive of early 1968. Although a tactical victory for American and South Vietnamese forces, Tet became a political disaster. The American public (who had been reassured by President Lyndon B. Johnson and the Pentagon that the communists were incapable of launching any such actions) were stunned by the size and ferocity of the offensive. The light at the end of the tunnel had been extinguished, if it had ever existed at all.〔For an overview of the offensive and its political repercussions, see Clark Dougan, Stephen Weiss, et al., ''Nineteen Sixty-Eight''. Boston: Boston Publishing Company, 1983.〕 The president, in an attempt to nudge Hanoi to the negotiating table, decreed an end to bombing operations in North Vietnam north of the 20th parallel, effectively ending ''Rolling Thunder'' on 11 November 1968.〔John Morocco, ''Thunder from Above: Air War, 1941–1968'', Boston: Boston Publishing Company, 1984, pp. 183–184.〕 What this effectively did was shift the bombing campaign southwestward to the Ho Chi Minh Trail. The interdiction campaign against the enemy logistics corridor was massively expanded due to the increased number of U.S. aircraft (approximately 500 planes) made available by the closure of ''Rolling Thunder''. By November 1968 bombing missions over southern Laos had climbed by 300 percent, from 4,700 sorties in October to 12,800 in November.〔Earl H. Tilford, ''Setup: What the Air Force did in Vietnam and Why.'' Maxwell Air Force Base, Alabama: Air University Press, 1991, p. 173.〕 By the end of the conflict, U.S. and South Vietnamese aircraft would drop over three million tons of ordnance on Laos, three times the total tonnage dropped on North Vietnam.〔Tilford, p. 173.〕 The new campaign against the trail was unprecedented, and not just due to the numbers sorties flown or munitions expended. The U.S. was going to field its latest technology in its attempt to prevent the North Vietnamese from toppling the South Vietnamese government. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Operation Commando Hunt」の詳細全文を読む スポンサード リンク
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