World War I (1914-1918) was the first global conflict in history, involving 38 countries with a combined population of over 1.5 billion – three quarters of the world’s population at that time. The war lasted four years, three months and ten days, and led to collapse of four empires – Russian, German, Austro-Hungarian and Ottoman. This RIA.ru infographic shows how the war remade the map of Europe and changed life for its inhabitants.
