Armored vehicles, Military 63 History 36 Tanks (Military science) 27 Tank warfare 23 Arms and armor 16 Armor 13 World War, 1939-1945 13 Armored troops 9 Thesis 8 Campaigns 7 Juvenile literature 6 Armed Forces 5 Dissertations, Academic 5 Identification 5 Periodicals 5 Tanks 5 Arms and Armor 4 Artillery, self-propelled 4 Encyclopedias 4 Ordnance 4 Pictorial works 4 Regimental histories 4 Weapon systems 4 Weapons 4 Armored vessels 3 Design and construction 3 Handbooks, manuals, etc 3 Mechanization, Military 3 Vehicles, Military 3 Weapons systems 3