Flying the C-124 Globemaster IIs, the C-130 Hercules, the C-141A Starlifter, and the C-133 Cargomaster, the 60th entered service while the US was beginning a major buildup of its military forces in Southeast Asia. The 60th quickly established a strategic aerial pipeline to the region, whose support of US forces in South Vietnam earned the unit three Air Force Outstanding Unit Awards. In 1966, the wing became the first recipient of the Air Force Logistic Systems Award. Assigned to the wing on 8 January 1966, the C-141-equipped 75th Military Airlift Squadron transitioned to the C-5 Galaxy, becoming the Military Air Command's first operational squadron to fly the new transport aircraft. On 6 February 1972, the wing added a second C-5 squadron, when the 22d Military Airlift Squadron activated at Travis.