A Service Of Commemoration - Afghanistan [Getty Images]

LONDON, ENGLAND - MARCH 13: Prince Harry (C) stands with Prince William, Duke of Cambridge (L) and Catherine, Duchess of Cambridge as they arrive to attend a Service of Commemoration for troops who were stationed in Afghanistan on March 13, 2015 in London, England. (Photo by Kirsty Wigglesworth - WPA Pool / Getty Images)

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