King Mohammed VI of Morocco at the Morocco-GCC (Gulf Cooperation Council) summit in Riyadh, Saudi Arabia on April 20, 2016.
British Prime Minister David Cameron (left) shakes hands with Abu Dhabi's crown prince, Mohammed bin Zayed Al-Nahyan, on the steps of 10 Downing Street in London on July 2, 2015. The prince is the deputy supreme commander of the United Arab Emirates' Armed Forces.
US President Barack Obama (right) poses with the Crown Prince of Abu Dhabi, Sheikh Mohammed bin Zayed al-Nahyan, at the White House in Washington, DC on April 20, 2015. The prince is the deputy supreme commander of the United Arab Emirates' armed forces. (Photo by MANDEL NGAN/AFP/Getty Images)
U.S. President Barack Obama welcomed the crown prince of Abu Dhabi, Sheikh Mohammed bin Zayed Al Nahyan (left) to the Nuclear Security Summit on April 12 in Washington D.C. (Sorry, the photos originally published with this post have expired.)