History 1,105 World War, 1914-1918 894 Histoire 264 Politics and government 172 History and criticism 137 Campaigns 118 Social aspects 104 more ... Foreign relations 103 Causes 101 Social conditions 87 Influence 85 Guerre mondiale, 1914-1918 82 Women 77 History, Military 73 Literature and the war 62 War 60 World War, 1939-1945 60 Civilization 52 Colonies 46 Soldiers 43 Weltkrieg 43 Historiography 39 Politique et gouvernement 38 Ethnic relations 37 Political aspects 36 War and society 34 Geschichte 33 Criticism and interpretation 32 English poetry 32 Economic conditions 31 less ...