History World War, 1939-1945 573 Campaigns 272 Armed Forces 90 History, Military 55 Aerial operations, American 48 Aerial operations, German 41 more ... Soldiers 37 Naval operations, American 36 Aerial operations, British 32 Naval operations 25 Naval operations, German 23 Guerre mondiale, 1939-1945 22 Regimental histories 21 Siena Donor: Vallely, M.L.S., John R. 21 Officers 18 Submarine 18 Naval operations, British 16 Military campaigns 15 Organization 14 Atrocities 13 Equipment and supplies 12 Histoire 12 Naval operations, Japanese 12 Publications about Graduates 12 Ardennes, Battle of the, 1944-1945 11 Campagnes et batailles 11 Military life 11 Strategy 11 Bombing, Aerial 10 less ...