SOCHI, RUSSIA - NOVEMBER 22: Turkish President Recep Tayyip Erdogan (R), Russian President Vladimir Putin (L) and Iranian President Hassan Rouhani (C) hold a joint press conference following the trilateral summit to discuss progress on Syria, between the Presidents of Turkey, Russia and Iran on November 22, 2017 in Sochi, Russia. (Photo by Sefa Karacan/Anadolu Agency/Getty Images)