French President Francois Hollande (L) poses with U.S. Ambassador to France Jane Hartley (C), three U.S. citizens National Guardsman Alek Skarlatos (2ndL), Airman First Class Spencer Stone (2ndR) and student Anthony Sadler as they leave after a ceremony at the Elysee Palace in Paris, France, August 24, 2015. French President Francois Hollande awarded France's highest honour, the Legion d'honneur, to three U.S. citizens and a Briton who helped disarm a machine gun-toting attacker on a Thalys train last week. REUTERS/Philippe Wojazer TPX IMAGES OF THE DAY