Wartime Protection

With the bombing of London continuing throughout the duration of the war, some protection was necessary for the building itself. Nothing ever happened to the Cabinet War Rooms, although there were many bombs falling nearby, but if anything had, a three foot thick slab of reinforced concrete would have protected these vital rooms and people. The structure became less and less protective with the advent of more powerful bombs, but fortunately, no bomb ever came close enough to damage the building.

Other efforts to secure against explosions resulted in a hallway being filled with cement and then being drilled through, to strengthen that particular section.

A band of Royal Marines also guarded the site against a direct attack. Arms were availible, and heavy steel doors were designed to guard against gas, but the most effective weapon against an invasion was the strict secrecy under which the operations took place.

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