More than 70,000,000 military personnel were mobilised during World War I - and more than 9,000,000 of them died. The grim figures also included 20,000,000 wounded and 8,000,000 missing in action. When the war ended in 1918, four empires had ceased to exist, the map of Europe had been redrawn and a generation of young men had been lost. The combatants had given their all, but their valiant sacrifice was in vain. This book tells the story.