Vietnam War, 1961-1975 869 History 198 Veterans 91 Politics and government 76 Protest movements 66 Foreign relations 51 Influence 35 Social aspects 33 History and criticism 27 Public opinion 27 Literature and the war 23 Political aspects 23 Social conditions 23 Agent Orange 22 Soldiers 22 Aerial operations, American 20 American literature 18 Health aspects 18 Toxicology 18 Korean War, 1950-1953 17 Psychological aspects 17 Vietnam War, 17 Iraq War, 2003-2011 16 African Americans 15 Campaigns 15 Political activity 15 World War, 1939-1945 15 Peace 13 Peace movements 13 Presidents 13