From left, Iranian President Hassan Rouhani, Turkish President Recep Tayyip Erdogan and Russian President Vladimir Putin after posing for a photo in Ankara, Turkey, Monday, Sept. 16, 2019. The leaders of Russia, Iran and Turkey met in Ankara to discuss the situation in Syria, with the aim of halting fighting in the northwestern Idlib province and finding a lasting political solution to the country's civil war, now in its ninth year. (AP Photo/Pavel Golovkin, Pool)
Iranian President Hassan Rouhani, Turkish President Recep Tayyip Erdogan and Russian President Vladimir Putin after posing for a photo in Ankara. AP Photo

Turkey, Russia and Iran agree on steps to ease tension in Syria's Idlib, despite lingering differences