Causes Politics and government History 98 Foreign relations 22 Political aspects 19 World War, 1939-1945 19 Slavery 18 World War, 1914-1918 16 Iraq War, 2003-2011 11 Diplomatic history 9 Influence 9 Secession 8 Antislavery movements 7 Social conditions 7 Holocaust, Jewish (1939-1945) 6 Ethnic relations 5 Historiography 5 Jews 5 Yugoslav War, 1991-1995 5 Arab-Israeli conflict 4 Economic conditions 4 Military policy 4 Moral and ethical aspects 4 National socialism 4 Political and social views 4 Relations 4 World politics 4 Zionism 4 Compromise of 1850 3 Democracy 3