World War, 1939-1945 67 Campaigns 28 History 22 Military campaigns 21 Soldiers 20 Vietnam War, 1961-1975 17 Armed Forces 15 more ... Prisoners of war 11 Aerial operations, American 10 American 10 Military operations, Aerial 9 World War, 1914-1918 9 Regimental histories 7 Korean War, 1950-1953 6 Medical care 6 Iraq War, 2003-2011 5 Japanese Americans 5 War 5 Concentration camps 4 Forced removal and internment, 1942-1945 4 Generals 4 Journalists 4 Marines 4 Prisoners and prisons, Japanese 4 Underground movements 4 Veterans 4 Air pilots, Military 3 Fighter pilots 3 Medical personnel 3 Military operations, Naval 3 less ...