 Its core consisted of two units — a regimental combat team from the 5th Marine Regiment and Marine Aircraft Group 33 (MAG-33).Their job was to provide close air support, resupply, and Medevac for Marine ground forces.In late-June 1952, 75 aircraft from 1st MAW participated in the attack on the Sui-ho Dam which were strikes aimed at the hydroelectric plants in North Korea.