THE ROYAL NAVY DURING THE SECOND WORLD WAR - Sea forts in the Thames Estuary: A close up of the fort manned. The crew are at the alert around a 40 mm Bofors gun. These secret forts of the Thames Estuary were an effective defence against attacks by sea and air on the estuary


Size: 1911px × 2615px
Photo credit: © piemags/ww2archive / Alamy / Afripics
License: Licensed
Model Released: No

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