Shortly after the success of Operation Triangle, the United States actively engaged in the wars in South Vietnam. The prevention of communist victory in South Vietnam became the American priority in Southeast Asia. While the Thais publicly despatched airmen, sailors and ground troops to assist the war effort in South Vietnam, Thai clandestine
assistance to the RLG continued. The PARU and RTSF continued their training for the Hmong. Firefly pilots continued their FAC and air interdiction tasks. SR artillerymen, apart from their original duty to defend Muong Soui, were assigned an additional task to train Lao artillerymen. By mid-1965, the bureaucracy of the Hmong forces grew to such a size that ten RTA officers were sent to the centre of Hmong’s clandestine forces at Long Cheng to start a Command and Staff School there.The traditional fighting pattern, with the Hmong on the offensive during the rainy season, assisted by Thai T-28 pilots and American fighters, while the Lao Viet went on the offensive during the dry season, continued until 1967. Neither side was able to significantly change the status quo.