Foreign relations -- 3 Congresses 2 Congresses -- 2 Economic integration 2 Arms control -- 1 Capital movements -- 1 Case studies 1 more ... Case studies -- 1 Colonies -- 1 Commerce -- 1 Defenses -- 1 Economic conditions -- 1 Economic integration -- 1 European Union 1 History -- 1 Investments, European -- 1 National security -- 1 Regional disparties -- 1 Regional planning -- 1 Research 1 less ...