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During the Vietnam War, the U.S. Joint Chiefs of Staff considered and rejected some additions to strategic bombing campaigns that would include targeting a series of dikes and dams along Vietnam's Red River delta. A classified 1965 USAF report suggested that the Red River flood control system could probably not be destroyed by conventional aerial bombing.〔(The Battle of the Dikes, ''Time Magazine'', Aug. 07, 1972 )〕 In 1966, John McNaughton, Secretary of Defense for International Security Affairs, proposed the destruction of the Red River Valley dams and dikes in order to flood rice paddies, disrupt the North Vietnamese food supply, and leverage Hanoi during negotiations; then-Secretary of Defense Robert McNamara, however, rejected the idea.〔Guenter Lewy, ''America in Vietnam'', pp. 398-399〕 President Richard Nixon and Secretary of State Henry Kissinger discussed bombing the dike network in a 1972 conversation on Operation Linebacker II, later published by Daniel Ellsberg:
The dike and dam system on the Red River had been expanded steadily since independence was declared and by 1972 consisted of nearly 2500 miles of dikes, levees, dams and sluices. Heavy monsoon rains coupled with the preoccupation of the civilian population that normally maintained the water works, led to extensive flooding in 1971.〔Seymour M. Hersh, "Dikes in Hanoi Represent 2,000-Year Effort to Tame Rivers", ''New York Times'', July 14, 1972〕 In an attempt to garner international opposition against the newest U.S. strategic bombing campaign, Rolling Thunder, the North Vietnamese Government began a propaganda campaign using images of the flood to allege that the U.S. had begun a strategic bombing campaign against the Red River dikes. Given the North Vietnamese tactic of forcing U.S. aircraft to jettison their bombloads and abort their missions, the dikes undoubtedly were their point of impact on occasion, as well they may have been for some downed U.S. aircraft.〔W Hays Parks, ''Linebacker and the Law of War'', Air University Review, January–February 1983〕 U.S. investigation into the North Vietnamese claims revealed that U.S. bombing had caused minor damage to the dikes but none of the damaged structures were part of the system protecting Hanoi, and none of the damage was severe enough to cause a major breach.〔Seymour M. Hersh, "War Foes See No Evidence of Deliberate Dike Attacks", ''The New York Times'', June 24, 1972〕 Further complicating matters was the North Vietnamese placement of anti-aircraft radars, surface to air missiles, and artillery atop dike structures. The dike system was also part of the North Vietnamese transportation network, with roads and rail lines in close proximity to the dikes. Although authorization was given during Operation Linebacker II to attack these sites, only the use of napalm, cluster bombs, and other antipersonnel weapons were permitted to be used in an attempt to minimize structural damage.〔 The North Vietnamese used these incidents as part of their propaganda campaign. Actress Jane Fonda is often credited with helping publicize the bombing, for which then U.S. Ambassador to the UN George H. W. Bush accused her of lying. Columnist Joseph Kraft who was also touring North Vietnam, believed that the damage to the dikes was done in error and was being used as propaganda by Hanoi, and that if the U.S. Air Force were "truly going after the dikes, it would do so in a methodical, not a harum-scarum way." Others, like Jean Thoraval of Agence France-Presse, reported personally witnessing a U.S. bombing raid where a dozen planes had dropped bombs and fired rockets on a nearby dike, concluding that "the attack was aimed at a whole system of dikes." Sweden's Ambassador to Hanoi, Jean-Christophe Öberg, along with two Swedish journalists, described the damage to the dikes as "methodic."〔(The Battle of the Dikes, Time Magazine, Aug. 07, 1972 )〕 In an investigation into the bombing of the dikes carried out by a French geographer, Yves Lacoste, concluded that the bombing was based on a systematic policy to flood the eastern part of the delta. This area was targeted more than the western part which had more military targets (for instance, Hanoi). The overwhelming majority of dike bombing also occurred on the concave sections of dike, the most vulnerable to such bombing. The effects of the bombing were profound, as 'minor damage' actually severely weakened the dike structure through sub-surface cracking, which increased vulnerability during periods of high discharge.〔Yves Lacoste, An Illustration of Geographical Warfare: Bombing the Dikes on the Red River, North Vietnam, Antipode 5, 1-13.〕 == Notes == 〔 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「Bombing of Vietnam's dikes」の詳細全文を読む スポンサード リンク
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