This week we mark the centenary of the end of the first World War and look at the causes of this conflict that engulfed dozens of Nations and changed millions of lives for ever. We talk to experts Professor Hew Strachan, Peter Caddick-Adams & Gary Wise for a superb insight into this most terrible of wars. Visit Viral History at http://www.viral-history.com/ Subscribe to Viral History on YouTube at https://www.youtube.com/channel/UC1nt… Like Viral History on Facebook at http://www.facebook.com/viralhistory/ Follow Viral History on Twitter at http://www.twitter.com/Viral_History Follow Viral History on Instagram at http://www.instagram.com/viralhistory