A task force was set up, called the Royal Thai Volunteer Regiment, whose mission was to fight and carry out civic action programs to assist South Vietnam.

Preparations went forward for rotating volunteer regiments, under a Royal Thai Army Expeditionary Division.

The Kingdom of Thailand, under the administration of military dictator Field Marshall Thanom Kittikachorn took an active role in the Vietnam War.

[2] In October 1967 the Royal Thai Volunteer Regiment (Queen's Cobras) was sent to Camp Bearcat at Bien Hoa, to fight alongside the Americans, Australians, New Zealanders and South Vietnamese.

[7] Troops of the Royal Thai Army were attacked in the 2003 Karbala bombings, which killed two soldiers and wounded five others.

The mission is considered the main reason the United States decided to designate Thailand as a major non-NATO ally in 2003.