European Union

Overview
Despite several periods of turmoil resulting in the "balance of power" shifting, European integration continued with its headquarters at Brussels although it ceased expanding in the 2010's and actually shrank with the United Kingdom and Turkey not continuing their membership.

Switzerland joined the EU as an associated state, remaining technically independent

Government
parliament representing individual "nations"

Membership
Andorra, Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Faroe Islands, Finland, France, Germany, Gibraltar, Greece, Guernsey and Alderney, Hungary, Ireland, Italy, Jersey, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Isle of Man, Monaco, Netherlands, Norway, Poland, Portugal, Romania, San Marino, Slovakia, Slovenia, Spain, Sweden