Britain's Prince William, Duke of Cambridge (C) smiles as he speaks with pilot John Romain (L) and Diane Lees, Director General of the I.W.M. during a visit to the Imperial War Museum in Duxford, north of London on July 9, 2015. Prince William on Thursday inspected a rare Spitfire plane gifted to a British museum by a US philanthropist on the eve of the 75th anniversary of the Battle of Britain aerial campaign by Nazi Germany. Photo: AFP