Other
Defense industry
3
Employment
Women
World War, 1939-1945
Economic & industrial aspects
2
War rallies
2
Air bases
1
Air pilots
1
Aircraft
1
Aircraft industry
1
Boat & ship industry
1
Bombs
1
Clothing trade
1
Defense industry strikes
1
Flags
1
Machine guns
1
Military parades & ceremonies
1
Military uniforms
1
Musical instruments
1
Naval operations
1
Naval yards & naval stations
1
Ordnance industry
1
Railroad freight cars
1
Sewing
1
Shipping
1
Ships
1
Storehouses
1
Tanks (Military science)
1
World War, 1914-1918
1