Russia and Turkey are on opposite sides of the war in Syria.
Moscow backs the Syrian President Bashar al-Assad, while Ankara supports opposition rebels who want to remove him.
However, the two sides have been working more closely in recent months.
On Tuesday, Presidents Vladimir Putin and Recep Tayyip Erdogan gave Kurdish fighters six days to retreat from the Syrian-Turkish border.
They reached the agreement just before the end of a United States-brokered ceasefire that halted Turkey’s military offensive in the region.
As Washington pulls back from the region, is Russia becoming the new power broker? And what are the implications for the wider Middle East?
Presenter: Hashem Ahelbarra
Yusuf Alabarda – Retired colonel of the Turkish armed forces
Pavel Felgenhauer – Russian defence and