From activation until April, 1971, H&HS-18 participated in 89 operations conducted in the 1st Marine Aircraft Wing (1st MAW) Tactical Area of Responsibility within the Republic of Vietnam. During this period the Squadron assisted in the conduct of 215,715 fixed wing sorties, 7,584 KC-130 missions, and 1,225,015 helicopter tasks. As a result of these efforts, Squadron members were awarded a collective total of 9 air medals. The unit was awarded the Presidential Unit Citation Streamer, the National Defense Service Streamer with one bronze star, the Vietnam Service Streamer with two silver stars, the Vietnam Cross of Gallantry with Palm Streamer, and the Vietnam Meritorious Unit Citation Civil Actions Streamer.