ANKARA, TURKEY - JULY 27 : Russian Ambassador to Turkey Alexei Yerkhov (C) stands next to Turkish President Recep Tayyip Erdogan (R) after presenting his letter of credence to Turkish President Recep Tayyip Erdogan (R) during their meeting  at the Presidential Complex in Ankara, Turkey on July 27, 2017.  (Photo by Binnur Ege Gurun/Anadolu Agency/Getty Images)