In March 1966, Holt announced that the 1st Battalion, Royal Australian Regiment, would be withdrawn and replaced by the 1st Australian Task Force, a self-contained brigade-sized unit based at Nui Dat. This effectively tripled the number of Australian troops in Vietnam to around 4,500, and also included 1,500 national servicemen – the first conscripts to serve in the conflict. By the final months of Holt's prime ministership, Australia had over 8,000 personnel stationed in South Vietnam, drawn from all three branches of the Australian Defence Force; the final troop increase was announced in October 1967. Holt "never deviated from his whole-hearted support for American bombing of North Vietnam and the hope that steadily increasing the number of foreign troops deployed to South Vietnam would lead to military victory and a solution to the crisis". John Gorton later said it was "ironical that, being a man of peace, he should have presided over one of the greatest build-ups of military power that Australia has found itself engaged in".