Britain’s Kate, The Duchess of Cambridge, smiles after she presenting a shamrock to Domnhall the Irish Wolfhound Mascot, at the St. Patrick’s Day Parade at the Cavalry Barracks in Hounslow, London, Friday, March 17, 2017. Their Royal Highnesses visited to present shamrocks to the Officers and Guardsmen of the 1st Battalion Irish Guards. (AP/RSS Photo/Kirsty Wigglesworth)