Item title reads - England's 1940 sea wall.

L/S towers sticking out of the sea. On the towers the army crews stand by their A.A. guns keeping open approaches to port of London. Giant catwalks link the towers that guard the shipping lanes. Various shots of the crew manning the guns. M/S group of the crew playing ludo on big board during their spare time. Various shots of another A.A. tower at sea which is manned by the navy, they load the guns. Various shots as the crew wave at the camera.