On 24 July 1923 the last Treaty ending hostilities in the Great War was signed at Lausanne in Switzerland. That Treaty closed a decade of violence. Jay Winter tells the story of what happened on that day. On the shores of Lake Geneva, diplomats, statesmen, and soldiers came from Ankara and Athens, from London, Paris, and Rome, and from other capital cities to affirm that war was over. The Treaty they signed fixed the boundaries of present-day Greece and Turkey,and marked a beginning of a new phase in their history. That was its major achievement, but it came at a high price. The Treaty contained within it a Compulsory Population Exchange agreement. By that measure, Greek-Orthodox citizens of Turkey, with the exception of those living in Constantinople, lost the right of citizenship and residence in that state. So did Muslim citizens of Greece, except for residents of Western Thrace. This exchange of nearly two million people, introduced to the peace conference by Nobel Prize…