On 15 April 1945 Mellaha AAF was taken over by USAAF's Air Training Command. It was renamed Wheelus Army Air Field (AAF) on 17 May 1945 in honor of USAAF Lieutenant Richard Wheelus who had died earlier that year in a plane crash in Iran. During the USAFs tenure the base was extended, demolishing the derelict motor racing buildings. A 1954 agreement with Libya extended use of the base until 1971, but changing needs led the United States to withdraw completely by 1970, handing the facility over to the new Libyan government that had taken power a year earlier in the 1969 Libyan coup d'état.