History -- World War, 1939-1945 -- Secret service -- 3 Aircraft industry -- 1 Diplomatic history 1 Equipment and supplies -- 1 Errors, inventions, etc 1 more ... Foreign relations -- 1 George VI, 1936-1952 1 History 1 Industrial mobilization -- 1 Military aspects -- 1 Planning 1 Subversive activities -- 1 Underground movements 1 World war -- 1 less ...