
BELGRADE, Serbia—The perceived threat of millions of immigrants from the western Balkans and Turkey, and the status of citizens from Central Europe living in the United Kingdom, have become touchstone issues in the British referendum on whether or not to stay in the EU. But little attention has been paid the other way, to the impact of a potential Brexit on Central and Eastern Europe, a region extending from Poland, the union’s sixth-most-populous member, to Kosovo, which has its own distant aspirations of membership. As polling in the U.K. has showed more support for the “leave” vote, discomfort has grown […]