World War, 1914-1918 32 History 26 First world war 6 War 5 HISTORY / Modern / 20th Century 4 History and criticism 4 War and society 4 War poetry, English 4 World war 4 Causes 3 English poetry 3 Indigenous peoples 3 Literature and the war 3 Second world war 3 War poetry 3 World history 3 Biography 2 Britain 2 Criticism and interpretation 2 Diplomatic history 2 Family 2 First World War 2 Germany 2 HISTORY / Revolutionary 2 HISTORY / Russia & the Former Soviet Union 2 History of doctrines 2 History, Military 2 Imperialism 2 Influence 2 International relations 2