World War, 1914-1918 1,000 World War, 1939-1945 956 History 344 Politics and government 110 Guerre mondiale, 1939-1945 104 Japanese Americans 102 Guerre mondiale, 1914-1918 100 more ... Campaigns 88 Foreign relations 84 Regimental histories 79 Forced removal and internment, 1942-1945 67 Atrocities 65 Evacuation of civilians 64 Jews 60 Refugees 58 Economic aspects 54 Causes 52 Civilian relief 47 Histoire 44 Concentration camps 42 Japanese 39 Peace 38 War 37 War work 35 Women 35 Diplomatic history 32 Diplomatic relations 31 African Americans 30 Soldiers 30 Armed Forces 28 Naval operations 28 Polish people 28 Political activity 28 World War 28 Polish Americans 27 Underground movements 27 Germans 26 Periodicals 25 Societies, etc 25 Civilian war relief 24 less ...