Leaders of the European Union met with Turkey’s prime minister in Brussles on Sunday in an effort to slow the influx of migrants into the area. The New York Times reports that the meeting will be the seventh assembly of European leaders on the topic of migration since this spring. The meeting follows days after a Russian warplane was shot down in Turkey, further complicating European decisions on how to handle the flow of migrants.

The meeting is expected to close a deal that would give Prime Minister Ahmet Davutoglu 3 million Euros in aid in exchange for further action from Turkey to stop migrants from reaching countries on the edge of Europe, such as Greece. German Chancellor Angela Merkel told reporters that there are many reasons for the E.U. to work with Turkey. In order to do that, replacing “illegal migration with legal migration” is a necessary part of the negotiations.

European officials have requested Turkey’s assistance in separating genuine refugees, such as those from Syria, from those attempting to flee poverty, who are not protected by international law.

The president of the European Council, Donald Tusk, expressed Europe’s plan, saying, “Our main goal is to stem the flow of migrants to Europe.” He went on to say that Turkey is a “key partner” in counterterrorism efforts and the ongoing civil war in Syria.

Tusk stressed, however, that the responsibility also falls on the European Union, and that there is a need to do more to secure the outer borders. He warned that failure to do so could compromise Schengen, the visa-free zone that unites 26 nations.

Concerns over migration have increased after the Nov 13. Paris attacks. Two of the known attackers entered France through Greece.