Along the way the EU has acquired a single currency, a common foreign policy, a passport-free travel zone and policies on justice and home affairs, plus a nascent defence alliance with its own military-planning staff.

• 正是用这样的方式，欧盟采用了单一货币，统一的外交政策，建立了免护照旅行区，实施司法和内政政策，以及新近成立的有自主参谋部的防务联盟。