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ANKARA, TURKEY - OCTOBER 22: Chief of the General Staff of the Turkish Armed Forces Hulusi Akar (L) and Chief of the General Staff of the Saudi Armed Forces general Abdul Rahman Bin Saleh (R) salute the guard of honor at the Turkish General Staff headquarters in Ankara, Turkey on October 22, 2015. (Photo by Ozge Elif Kizil/Anadolu Agency/Getty Images)

ANKARA, TURKEY - OCTOBER 22: Chief of the General Staff of the Turkish Armed Forces Hulusi Akar (L) and Chief of the General Staff of the Saudi Armed Forces general Abdul Rahman Bin Saleh (R) salute the guard of honor at the Turkish General Staff headquarters in Ankara, Turkey on October 22, 2015. (Photo by Ozge Elif Kizil/Anadolu Agency/Getty Images)