Across France, people are commemorating the 100th anniversary of La Grande Guerre - the first world war. Hugh Carnegy, Paris bureau chief, travels to Marne, the site of a key battle, to find out why memories of the war hold so much resonance for the French.<br /><br />For more video content from the Financial Times, visit http://www.FT.com/video<br /><br />Subscribe to the Financial Times on YouTube; http://goo.gl/vUQx5k<br />Twitter https://twitter.com/ftvideo<br />Facebook https://www.facebook.com/financialtimes
