The complex was named Gibraltar Barracks in 1938, after the first of the Regiment’s Battle Honours. Until the 1939-1945 War, the Barracks remained the Depot of the Suffolk Regiment. From then until 1959, this role was increasingly taken over by Blenheim Camp (on the opposite side of Newmarket Rd), with the Keep serving as the Armoury and Quartermaster’s Stores. This arrangement continued after 1959 with the two sites acting as the Depot for the 1st East Anglian Regiment and (after 1964) the Royal Anglian Regiment. By the time the Royal Anglian Regt moved to the new Depot of the Queen’s Division at Bassingbourn in 1969, most of the buildings on the 1878 site had been demolished.
The Keep is one of the few Keeps from the 1870s to survive in military use; it, and the surviving boundary walls are Grade II Listed Buildings. One of only nine surviving examples of this important symbolic building. The Suffolk Regiment Museum opened in 1935 occupies part the ground and first floor of the Keep with the remaining space used by the Regimental HQ, Royal Anglian Regiment.
