Turkey promised to help stem the flow of migrants to Europe in return for cash, visas and renewed talks on joining the EU in a deal struck on Sunday that the Turkish prime minister called a "new beginning" for the uneasy neighbors.
Leaders of the European Union met Turkish premier Ahmet Davutoglu in Brussels on Sunday to finalize an agreement hammered out by diplomats over the past month, as Europeans struggle to limit the strain on their 28-nation bloc from taking in hundreds of thousands of Syrian refugees.
Also on offer to Ankara, which wants to revive relations with its European neighbors after years of coolness as it faces trouble in the Middle East and from Russia, is a "re-energized" negotiating process on Turkish membership of the EU, even if few expect it to join soon.