The Government War Book was a secret document containing comprehensive plans for the defence of the United Kingdom in the event of war. It was created during the First World War, and maintained throughout the rest of the 20th century.
The Government War Book was a secret document containing comprehensive plans for the defence of the United Kingdom in the event of war. It was created during the First World War, and maintained throughout the rest of the 20th century.
Source: Wikipedia "Government War Book" · CC BY-SA 4.0
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