Influence Vietnam War, 1961-1975 6 Missing in action 2 Political activists 2 Political aspects 2 Politics and government 2 Prisoners and prisons, North Vietnamese 2 Prisoners of war 2 Relations 2 American literature 1 Biography 1 Exiles 1 Foreign public opinion, Vietnamese 1 Foreign relations 1 History 1 History and criticism 1 Literature and the war 1 Mass media and the war 1 Peace movements in literature 1 Prisoners of war in literature 1 Protest movements 1 Public opinion 1 Social aspects 1 Social conditions 1 Soldiers in literature 1 Soldiers' writings, American 1 War in literature 1