LONDON, ENGLAND - MARCH 18:  Prince Harry (C) is greeted by Ed Parker (L) the founder and CEO of the charity Walking with the Wounded as he arrives for the launch of Walking with the Wounded's ''Walk of Britain'' charity event on March 18, 2015 in London, England. Five wounded veterans will walk 1000 miles through mainland Britain, starting in Scotland on August 22 and ending in London on October 31. (Photo by Alastair Grant - WPA Pool/Getty Images)