In August 1948, in response to the Berlin blockade, the U.S. deployed long-range B-29 Superfortress strategic bombers to four English East Anglian bases. The 3rd Air Division (Provisional) was activated as part of United States Air Forces in Europe to receive, support and operationally control the B-29 units deployed for training. At this time these units were only expected to take part in 30- to 60-day temporary duty cycles. It was formed at RAF Marham, and on 23 August 1948, the provisional title was dropped, and on 8 September the headquarters moved into quarters at Bushy Park and remained there until April 1949 when it moved to the Victoria Park Estate, South Ruislip.