Prime Minister Alexis Tsipras and Turkish President Recep Tayyip Erdogan will meet on Thursday, at 15.30 (Athens time).

The two leaders are meeting on the sidelines of the NATO summit in Brussels.

Tsipras described on Wednesday the detainment of two Greek soldiers by Turkey, a fellow NATO member, as a "wound" for the western alliance.

"It is a wound for all of NATO the unprecedented fact that two soldiers from a NATO country are being detained by another NATO country for more than four months because they passed a few meters into its territory by mistake and without any charges laid against them," said Tsipras at the NATO summit in Brussels and called on Turkey to help the wound heal by returning the two soldiers.

The Greek premier also raised the issue of Turkey's aggression saying that "it is a permanent wound for the alliance that fact that our neighbouring country insists on violating international law in our area and aims for the exemption of the Aegean Sea from operational planning at the cost of our collective abilities."