The Battles of Bouamlong came about because the valley of Bouamlong was a center of Royalist guerrilla operations during the Laotian Civil War. Located well into Communist-held territory and maintained by an air bridge, on several occasions Bouamlong served as a launching point for Royalist offensives such as Operation Raindance, Kou Kiet, Operation Counterpunch III, and Operation Strength. It was also targeted for attack by offensives by the People's Army of Vietnam during Campaign 139 and Campaign 74B. Defended by Auto Defense Choc troops led by Major Cher Pao Moua, Bouamlong held out against the Communist forces even after the War ended in a ceasefire in February 1973. There were reports of resistance into the 1990s.