The second predecessor of the unit was established as the 19th Logistic Support Squadron in 1952 as the first of three logistic support squadrons organized by Air Materiel Command.The other two squadrons were the 28th Logistic Support Squadron, activated at Hill Air Force Base in 1953, and the 7th Logistic Support Squadron, activated at Robins Air Force Base in 1954. The squadrons were familiarly known as the "7th, 19th and 28th Logs" and each incorporated a log into its squadron emblem. Its mission was to provide worldwide airlift of nuclear weapons and related equipment, with a secondary mission to airlift other Department of Defense cargo as required when space was available.
