COLOGNE, GERMANY - MAY 24:  Turkish Prime Minister Recep Tayyip Erdogan waves to Turkish expatriates at an event to mark the 10th anniversary of the UETD, the Union of European Turkish Democrats, at the Lanxess Arena on May 24, 2014 in Cologne, Germany. Erdogan faces Turkish presidential elections in August and his critics have lambasted him for his handling of the recent mine catastrophe at Soma.  (Photo by Sascha Schuermann/Getty Images)