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BATTLE // April 29, 1970

Cambodian campaign

Overview

The Cambodian campaign was a series of military operations conducted in eastern Cambodia in mid-1970 by South Vietnam and the United States as an expansion of the Vietnam War and the Cambodian Civil War. Thirteen operations were conducted by the Army of the Republic of Vietnam (ARVN) between April 29 and July 22 and by U.S. forces between May 1 and June 30, 1970.

Overview adapted from Wikipedia, licensed under CC BY-SA 4.0.

Significance

The Cambodian campaign extended the Vietnam War across an international border, marking a significant geographic and political escalation. Thirteen separate operations were conducted by ARVN forces between April 29 and July 22, and by U.S. forces between May 1 and June 30, 1970, targeting North Vietnamese positions in eastern Cambodia. The campaign intersected with the Cambodian Civil War, drawing that conflict further into the wider regional struggle. ARVN forces committed 58,608 troops against an estimated 40,000 North Vietnamese, inflicting 11,369 casualties at a cost of 3,009 of their own. The cross-border operations aimed to disrupt North Vietnamese logistics and base areas that had long been used to support operations inside South Vietnam, directly challenging the strategic infrastructure sustaining enemy forces in the southern theater.

Forces & casualties

Troop strength

  • South Vietnam58,608
    medium
  • North Vietnam40,000
    medium

South Vietnam fielded a 1.5 : 1 numerical advantage

Casualties

  • South Vietnam3,009
    medium5% loss rate
  • North Vietnam11,369
    medium28% loss rate

Commanders (17)

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Last verified June 2026
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