Federal Europe
Schengen Area
Schengen Area
Countries with open borders to the Schengen area
Member of the EU committed by treaty to join the Schengen Area in the future
A federal Europe, also referred to as the United States of Europe (USE) or a European federation, is a hypothetical scenario of European integration leading to the formation of a sovereign superstate (similar to the United States), organised as a federation of the member countries of the European Union (EU), as contemplated by political scientists, politicians, geographers, historians, futurologists and fiction writers. At present, while the EU is not officially a federation or even a confederation, most contemporary scholars of federalism view the EU as a federal system, a supranational union, which has a flexible (see right to secession, Article 50 and Brexit) membership and competence delegation.