Soldiers History 114 World War, 1914-1918 30 World War, 1939-1945 26 Armed Forces 20 Campaigns 20 Vietnam War, 1961-1975 20 more ... Military life 16 Social aspects 14 History, Military 13 Psychological aspects 13 Social conditions 13 Veterans 11 Psychology 10 War 10 Education, Non-military 9 Politics and government 8 Iraq War, 2003-2011 7 Medical care 7 Mental health 7 Participation, African American 7 Health and hygiene 6 Regimental histories 6 Religious life 6 Women 6 Armies 5 Families 5 History and criticism 5 Moral and ethical aspects 5 Social life and customs 5 less ...