Britain's Prince William and Catherine, the Duchess of Cambridge, stand with pints of Guinness in their...
Britain's Prince William and Catherine, the Duchess of Cambridge, stand with pints of Guinness in their hands as they visit soldiers of the 1st battalion Irish Guards in their canteen following their St Patrick's Day parade at Cavalry Barracks, Hounslow on Friday, 17th March 2017REUTERS/Richard Pohle/Pool