Migration Is Splitting Europe Apart

In the summer of 1985, representatives from five Western European countries met aboard a riverboat in Schengen, a wine-making village in Luxembourg, to celebrate the removal of checkpoints at their borders. According to the document they approved, which became known as the Schengen Agreement, the signatory countries sought “solidarity between their peoples by removing obstacles to free movement,” forming a border-less zone that gave tangible expression to principles of liberal internationalism…