Turkey and European leaders have struck a deal to try to control the flow of migrants to Europe.
Turkey will receive 3 billion Euros and political concessions in return for clamping down on its borders and keeping refugees in the country.
Talks on Turkey's accession to the European Union will also be revived.
Prime Minister Ahmet Davutoglu said it was a "historic day" in Turkey's relations with the EU.
Under the deal, Turkish citizens may be able to travel without visas in Europe's Schengen zone, which allows free movement between many European countries, by October 2016.