scale separate operation, the Thai troops assisted in the pacification of the Nhon Trach District of Biên Hòa Province and killed 145 of the enemy. The Thai soldier was found to be a resourceful and determined fighting man who displayed a great deal of pride in his profession. In addition to participating in combat operations, the Thai units were especially active in civic action projects within their area of responsibility. During Operation NARASUAN the Thais built a hospital, constructed 48 kilometers of new roads, and treated nearly 49,000 civilian patients through their medical units.
Even before all elements of the Royal Thai Volunteer Regiment had arrived in Vietnam, efforts were being made to increase again the size of the Thai contribution. By mid-1967 the Thai government had unilaterally begun consideration of the deployment of additional forces to South Vietnam. On 28 September the Thai government submitted a request for extensive military assistance to the American Embassy at Bangkok. Specific items in the request were related directly to the provision of an additional army force for South Vietnam. The Thai Prime Minister proposed a one-brigade group at a strength of 10,800 men. This organization was to be composed of three infantry battalions, one artillery battalion, one engineer battalion, and other supporting units as required.
In an apparently related move, meanwhile, the chairman of the Joint Chiefs had requested the Joint General Staff to assess the Thai military situation. This assessment was to include a review of the security situation in Thailand, the military organization, and the ability of the Thais to send additional troops to South Vietnam. In turn the Joint General Staff asked for the views of the U.S. Military Assistance Command, Thailand, not later than 20 September 1967 concerning Thai capability. The Joint Staff wished to know how long it would take the Thai government to provide the following troop levels, including necessary supporting troops, to Vietnam: 5,000 troops (approximately two infantry battalions, reinforced); 15,000 troops (approximately four infantry battalions, reinforced); 20,000 or more troops (approximately eight infantry battalions, reinforced, or more). The staff also wanted to know the effect that furnishing troops at each level would have on Thai internal security.
The commander of the U.S. Military Assistance Command, Thailand, Major General Hal D. McCown, concluded that the Royal Thai Army could provide a 5,000-man force without incurring an unacceptable risk to Thailand's internal security. He also believed it possible for Thailand to deploy a 10,000-man
