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The Escape of the Provisional Revolutionary Government was a series of military operations conducted in eastern Cambodia during mid-1970 by the Republic of Vietnam (South Vietnam) during the Vietnam War. The objective was to search and destroy head corridor elements of the Provisional Revolutionary Government of the Republic of South Vietnam (PRG), National Front for the Liberation of South Vietnam (NLF) or Viet Cong (VC) and Central Office for South Vietnam (COSVN). A change in the Cambodian government allowed a window of opportunity for the destruction of the base areas in 1970 when Prince Norodom Sihanouk was deposed and replaced by pro-American General Lon Nol. The pro-American Lon Nol demanded the Vietcong forces to leave Cambodia, they refused and took control of much of the East and North of Cambodia. Lon Nol and the South Vietnamese responded by launching an invasion of the border region and forcing the anti government fighters to leave the area to safer Vietnamese controlled Kratie provinces to the north. Some elements of the anti government forces including the PRG left the area while under pressure from Cambodian and South Vietnamese forces. This operation was seen as a precursor to the much larger Cambodian Campaign a month later. ==Background== The People's Army of Vietnam had been utilizing large sections of relatively unpopulated eastern Cambodia as sanctuaries into which they could withdraw from the struggle in South Vietnam to rest and reorganize without being attacked. These base areas were also utilized by the communists to store weapons and other material that had been transported on a large scale into the region on the Sihanouk Trail. During 1968, Cambodia's indigenous communist movement, labeled Khmer Rouge (Red Khmers) by Cambodian King Norodom Sihanouk, began an insurgency to overthrow the government. While they received very limited material help from the North Vietnamese at the time (the Hanoi government had no incentive to overthrow Sihanouk, since it was satisfied with his continued "neutrality"), they were able to shelter their forces in areas controlled by PAVN/NLF troops. While Sihanouk was abroad in France for a rest cure in January 1970, government sponsored anti-Vietnamese demonstrations erupted throughout Cambodia. Continued unrest spurred Prime Minister/Defense Minister Lon Nol to issue an ultimatum on 12 March to the North Vietnamese to withdraw their forces from Cambodia within 72 hours. On 18 March, the Cambodian National Assembly officially deposed Sihanouk and named Lon Nol as provisional head of state. The North Vietnamese response to the coup was swift. Even before Lon Nol's 12 March ultimatum PAVN had begun expanding its logistical system from southeastern Laos (the Ho Chi Minh trail) into northeastern Cambodia. After Lon Nol's anti-Vietnamese movements PAVN also launched an offensive (Campaign ''X'') against the Cambodian army, quickly seizing large portions of the eastern and northeastern parts of the country, isolating and besieging or overrunning a number of Cambodian cities including Kampong Cham. 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「Escape of the Provisional Revolutionary Government」の詳細全文を読む スポンサード リンク
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