Campaigns World War, 1939-1945 332 History 196 World war, 1939-1945 56 Biography 51 Regimental histories 35 History, Military 33 World War, 1914-1918 29 World War 22 Personal narratives, American 21 Personal narratives 20 Soldiers 18 Military leadership 15 Personal narratives, British 14 France 12 Army 11 Naval operations 11 Armed Forces 10 Napoleonic Wars, 1800-1815 10 Normandy 10 Tank warfare 9 Western Front 9 Aerial operations 8 Aerial operations, American 7 Aerial operations, British 7 Civil War, 1861-1865 7 Generals 7 Naval operations, American 7 Siege, 1942 7 Siege, 1942 - 7