Photo B0021:  Members of Alpha Company, 1st Platoon, 720th MP Battalion, 4th Army, III Corps, Fort Hood, Texas await their turn to load into air transport at Gray Army Air Field, Fort Hood, Texas. They were training as the rapid reaction force for the protection of President Lyndon B. Johnson at his ranch outside of Johnson City, Texas in March 1965.. Courtesy of 2LT William E. Thomas, Alpha Company, 720th MP Battalion, Fort Hood, Texas, 1964-1965, 615th MP Company, 716th MP Battalion, 89th MP Group, Military Assistance Command Vietnam (MACV), August 1965-August 1966.