Foreign relations -- Politics and government -- National security -- 2 Causes 1 Commonwealth countries 1 Commonwealth countries -- 1 Congresses -- 1 more ... Diplomatic history 1 Economic conditions -- 1 Economic integration 1 European Union 1 European communities 1 European economic community -- 1 Foreign economic relations 1 Foreign economic relations 1 Foreign rrelations -- 1 German reunification question (1949-1990) 1 History -- 1 Iraq War, 2003 -- 1 Iraq War, 2003- 1 Operation Allied Force, 1999 1 Social conditions -- 1 World War, 1939-1945 -- 1 less ...