Soldiers dressed as World War I cavalrymen salute Jordan's King Abdullah II (in his role as Colonel in Chief of the Light Dragoons) during the 90th annual Combined Cavalry Old Comrades Association Parade in London, England's Hyde Park on May 11, 2014. (Photo by Max Mumby/Indigo/Getty Images)
King Abdullah (center) takes the salute. (Photo by Max Mumby/Indigo/Getty Images)