BRUSSELS (Reuters) – 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 neighbours. Leaders of the European Union met Turkish premier Ahmet Davutoglu in Brussels on Sunday to finalise 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. A key element is 3 billion euros (£2.1 billion) in EU aid for the 2.2 million Syrians now in Turkey. The money is intended to raise their living standards and so persuade more of them to stay put rather than attempt perilous crossings to the EU via the Greek islands. The final offer of “an initial” 3 billion euros represents a compromise between the EU, which offered that sum over two years, and Turkey, which wanted it every year. Now the money, as French President Francois Hollande said, will be paid out bit by bit as conditions are met, leaving the total payout unclear. “As Turkey is making an