 From 1955 until 1971, the 490th was aligned under the Fourth United States Army until that major command was inactivated 30 June 1971.The 490th was then realigned to the Fifth United States Army.For much of the time between 1955 and the 1980s, the 490th was assigned for command and control to the 90th Army Reserve Command (ARCOM) (now the 90th Sustainment Brigade), formerly known as the 90th Infantry Division.