Foreign relations World War, 1939-1945 Diplomatic history 71 History 26 Causes 22 Politics and government 16 Campaigns 8 World politics 6 Military policy 5 National socialism 5 Peace 5 Sources 4 History, Military 3 Holocaust, Jewish (1939-1945) 3 Influence 3 Jews 3 Pearl Harbor (Hawaii), Attack on, 1941 3 Underground movements 3 World War, 1914-1918 3 Alliances 2 Atomic bomb 2 Atrocities 2 Cold War 2 Persecutions 2 Political and social views 2 Public opinion 2 Sino-Japanese War, 1937-1945 2 Social conditions 2 Addresses, essays, lectures 1 Allied occupation, 1945-1955 1