History 262 Foreign relations 225 World War, 1939-1945 153 Politics and government 125 World War, 1914-1918 92 Causes 60 Histoire 30 more ... Secret service 30 Diplomatic history 27 Prisoners of war 27 Relations 27 Diplomatic relations 25 Relations extérieures 25 Campaigns 22 Prisoners and prisons, German 22 Jews 20 History and criticism 19 Public opinion 19 Colonies 17 Politique et gouvernement 17 Germans 16 Spies 15 Guerre mondiale, 1939-1945 14 Military intelligence 14 Social conditions 14 World politics 14 English literature 13 German literature 13 Jewish refugees 13 Prisoners and prisons, British 13 less ...