Charles Kupchan and Adam Posen discuss the United Kingdom's future role in Europe and assess the ramifications of this changing relationship.

President Vladimir Putin of Russia recognized the independence of two territories in eastern Ukraine, portions of which are controlled by Russia-backed separatists, and has ordered the deployment of …

In January 2013, British Prime Minister David Cameron laid out plans to renegotiate the United Kingdom's membership status in the European Union and called for a 2017 referendum on Britain exiting th…

Petro Poroshenko discusses Ukraine's relationship with Russia, democratic reforms in Ukraine, and U.S. and European Union policy toward the region. 

As President Joe Biden heads to Europe to bolster the Western alliance in the face of Russian aggression in Ukraine, CFR experts discuss the response by the United States and its allies to the crisis…