Newly graduated Saudi air force officers march in front of a banner bearing portraits of King Salman bin Abdulaziz (C), Crown Prince Mohammed bin Nayef (R), and deputy Crown Prince Mohammed bin Salman during a ceremony marking the 50th anniversary of the creation of the King Faisal Air Academy at King Salman airbase in Riyadh on January 25, 2017. / AFP / FAYEZ NURELDINE        (Photo credit should read FAYEZ NURELDINE/AFP/Getty Images)