Operation Lam Son 719 amid "Vietnamization" Strategy during Vietnam War

Fifty years ago, Operation Lam Son 719 was organized by the US Army and the Army of the Republic of Vietnam (ARVN) to realize their scheme to cut off the Indochina battlefield separating the Vietnam revolutionary forces from the revolutionary movement of Laos and Cambodia. Based on historical evidence from previous Vietnamese and USA documents, this article aims to prove that Operation Lam Son 719 made many strategic mistakes in assessing the military power of ARVN and the revolutionary alliance of Vietnam - Laos – Cambodia during the Vietnam War, as well as the tactical mistakes on the battlefield of ARVN. The failure of Operation Lam Son 719 dealt a heavy blow to the Vietnamization strategy, showing the passive strategic approach in the Doctrine of Vietnamization. Operation Lam Son 719 played a big role in forcing the U S to agree to negotiate with Democratic Republic of Vietnam in Paris.