Catherine, the Duchess of Cambridge, poses for a picture with the President of Mongolia Elbegdorj Tsakhia (L) and Erdene Elbegdorj during a reception at Buckingham Palace, London July 27, 2012, to welcome Heads of State and Heads of Government to the United Kingdom before they travel to the Olympic Stadium for the Opening Ceremony of the London 2012 Olympic Games.[Photo/Agencies]