On 12 April 1975 Amphibious Ready Group Alpha (Task Group 76.4), and the 31st Marine Amphibious Unit (Task Group 79.4) embarked and arrived at the designated station off Kampong Som in the Gulf of Thailand, the force comprised: Task Group 76.4 (Movement Transport Group Alpha)[2]:111

Escort ships for naval gunfire, escort, and area defense:[1]

The Aircraft involved was the USS HANCOCK

The marine evacuation contingent comprised one battalion landing team, 2nd Battalion, 4th Marines (2/4).[1] On 13 April, Amphibious Ready Group Alpha proceeded to the South China Sea to rendezvous with Task Force 76 as it stood by to implement Operation Frequent Wind, the evacuation of Saigon.[2]:124