French President Francois Hollande (C) and French Minister for Cities, Youth and Sport Patrick Kanner (2ndR) and Canadian Governor General David Johnston (3rdR) visit the Canadian National Vimy Memorial during a commemoration ceremony to mark the 100th anniversary of the Battle of Vimy Ridge, in Vimy, near Arras, northern France, on April 9, 2017. REUTERS/Philippe Huguen/POOL