History Korean War, 1950-1953 Campaigns 18 World War, 1939-1945 15 Armed Forces 14 Regimental histories 12 Vietnam War, 1961-1975 12 more ... Soldiers 11 Politics and government 9 History, Military 8 Aerial operations, American 6 Foreign relations 6 Participation, American 6 Aerial operations 5 African American soldiers 5 African Americans 5 Participation, African American 5 Political aspects 5 Aeronautics 4 Naval operations, American 4 Politics and war 4 Race relations 4 War brides 4 Women 4 Airplanes 3 Biological warfare 3 Civil-military relations 3 Diplomatic history 3 Executive power 3 Korean American women 3 less ...