Politics and government 41 History 40 Economic integration 31 Foreign relations 18 Jews 14 International relations 11 Social conditions 10 more ... Ethnic relations 9 Economic conditions 8 World War, 1939-1945 8 Civilization 7 Cold War 7 European federation 6 Foreign economic relations 6 Post-communism 6 Relations 6 Democracy 5 Diplomatic relations 5 Jewish ghettos 5 Concentration camps 4 Historiography 4 Nationalism 4 Nazi concentration camps 4 Persecutions 4 Social aspects 4 Antisemitism 3 Boundaries 3 Constitutional law 3 Economic policy 3 European cooperation 3 less ...