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Invasion of Cambodia

Cambodian Campaign
Part of the Vietnam War
Map Cambodian Incursion May 70 from USMA.jpg
Location of campaign and showing units involved in the operation
Date 29 April – 22 July 1970
Location Eastern Cambodia
Result

Tactical U.S./ARVN victory

  • Capture of large amounts of communist supplies and materiel
Belligerents
 South Vietnam
 United States
Khmer Republic
Viet Cong
 North Vietnam
Khmer Rouge
Commanders and leaders
II Corps: South Vietnam Lữ Mộng Lan
III Corps: South Vietnam Đỗ Cao Trí
IV Corps: South Vietnam Nguyễn Viết Thanh
Trần Quang Khôi
United States Richard Nixon
Creighton W. Abrams
Cambodia Lon Nol
B-3 Front: Phạm Hùng (political)
Hoàng Văn Thái (military)
Strength
South Vietnam 58,608
50,659
~40,000
Casualties and losses
809 killed in action
3,486 wounded in action
United States 338 dead
1,525 wounded
13 missing
U.S claimed: 12,354 killed in action
1,177 captured
(these figures were disputed by CIA, who insisted that civilians death were figured into US's total).

Tactical U.S./ARVN victory

The Cambodian Campaign (also known as the Cambodian Incursion and the Cambodian Invasion) was a series of military operations conducted in eastern Cambodia during 1970 by the United States and the Republic of Vietnam (South Vietnam) during the Vietnam War. These invasions were a result of the policy of President Richard Nixon. A total of 13 major operations were conducted by the Army of the Republic of Vietnam (ARVN) between 29 April and 22 July and by US forces between 1 May and 30 June.

The objective of the campaign was the defeat of the approximately 40,000 troops of the People's Army of Vietnam (PAVN) and the National Front for the Liberation of South Vietnam (NLF, also known as Viet Cong) who were ensconced in the eastern border regions of Cambodia. Cambodia's official neutrality and military weakness made its territory effectively a safe zone where Vietnamese communist forces could establish bases for operations over the border. With the US shifting toward a policy of Vietnamization and withdrawal, the US sought to shore up the South Vietnamese government's security by eliminating the cross-border threat.

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-US General Lon Nol. The operation was also in response to North Vietnamese offensive on March 29 against the Cambodian Army that captured large parts of eastern Cambodia. Allied military operations failed to eliminate many communist troops or to capture their elusive headquarters, known as the Central Office for South Vietnam (COSVN), but the haul of captured material in Cambodia prompted claims of success.

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 Vietnamese communists to store weapons and other material that had been transported on a large scale into the region on the Sihanouk Trail. PAVN forces had begun moving through Cambodian territory as early as 1963. In 1966, Prince Norodom Sihanouk, ruler of Cambodia, convinced of eventual communist victory in Southeast Asia and fearful for the future of his rule, had concluded an agreement with the People's Republic of China which allowed the establishment of permanent communist bases on Cambodian soil and the use of the Cambodian port of Sihanoukville for resupply.


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Wikipedia

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