Turkey is one of the EU's most important gatekeepers to illegal migration. But a row over visas is threatening the adoption of an agreement that Brussels sees as key to controlling the growing problem of illegal migration through Turkey.
According to the EU as many as 80,000 migrants are believed to have entered Greece from Turkey illegally. And that is why Brussels is pressing Ankara to agree to accept back people who've entered the EU illegally.
But Ankara says it will only agree to the so-called re-admission agreement if the EU eases visa requirements on its citizens.
For more: Turkey Pushes Again for Removal of EU Visa Requirements | Europe | English