It was reoccupied by the military for the first time in over 400 years, with British and Canadian troops garrisoning it from May 1940, and Americans later. The towers of the inner bailey were converted into troop accommodation by lining the walls with bricks and laying wooden floors.
The military reoccupied the site after a long absence of over four centuries, with British and Canadian troops stationed there from May 1940, followed by Americans. The inner bailey's towers were transformed into barracks by lining the walls with bricks and laying wooden floors.