MUSCAT, OMAN - MARCH 17:  Omani soldiers prepare for the arrival of Prince Charles, Prince of Wales and Camilla, Duchess of Conrnwall at the VIP section of Muscat International airport on the seventh day of a tour of the Middle East on March 17, 2013 in Muscat, Oman. The Royal couple are on the fourth and final leg of a tour of the Middle East taking in Jordan, Qatar, Saudia Arabia and Oman.  (Photo by Chris Jackson/Getty Images)