ORDER OF BATTLE // February 8, 1971
Operation Lam Son 719
Estimated force strength by side, with confidence labels per surviving record.
Forces engaged
2 sides catalogued · combined 46,000 estimated
South Vietnam
21,000
Medium-confidence figure
North Vietnam
25,000
Medium-confidence figure
Battle context
Operation Lam Son 719 was a South Vietnamese ground offensive into southeastern Laos conducted between February 8 and March 25, 1971, aimed at disrupting the People's Army of Vietnam's logistical network along the Ho Chi Minh Trail and forestalling a potential future PAVN offensive. The operation was a direct test of Vietnamization — the U.S. policy of transferring combat responsibility to South Vietnamese forces — as U.S. law prohibited American ground troops from crossing into Laotian territory, limiting Washington's role to logistical, aerial, and artillery support. South Vietnamese forces of approximately 21,000 engaged a PAVN force of roughly 25,000, suffering over 1,100 killed against more than 2,160 PAVN dead. The campaign exposed the limits of South Vietnamese operational capacity when unsupported by U.S. ground forces and raised serious questions about whether Vietnamization had produced an army capable of independent large-scale maneuver against a prepared enemy on its own logistical ground.
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