History 24 World War, 1939-1945 13 Fighter planes 10 Airplanes, Military 8 Equipment and supplies 6 Campaigns 4 Equipment 4 Jet planes, Military 4 Pictorial works 4 Uniforms 4 Vehicles, Military 4 Artillery 3 Tanks (Military science) 3 World War, 1914-1918 3 Aerial operations, British 2 Aeronautics 2 Army 2 Coaching 2 Congresses 2 Design and construction 2 Employees 2 Firearms 2 Foreign relations 2 Germany 2 Golf 2 Heer 2 Infantry 2 Nutrition 2 Politics and government 2 Private flying 2