Politics and government -- Foreign relations -- 3 History -- 2 Boundaries 1 Diplomatic history 1 Economic integration 1 European Union 1 more ... German reunification question (1949-1990) 1 Iraq War, 2003 -- 1 Iraq War, 2003- 1 National security -- 1 Operation Allied Force, 1999 1 Regional planning -- 1 Regionalism -- 1 Relations -- 1 Territory, National -- 1 less ...