1001 Space Earth Nature History First Civilisations Ancient Egypt Biblical Times Ancient Greece Ancient Rome Chinese, Japanese Civilisations Indian Civilisation African Civilisation The Early Americas The Rise of Islam The Middle Ages The Renaissance Civil War and Revolution The Industrial Revolution Two World Wars 20th-century Achievements Human World Science and Technology	How many soldiers lost their lives in the First World War? Over 70 million men were mobilised, or assembled, to fight in the war. The total number of soldiers who died on active service is estimated at over 9 million.   Previous: Back Book: 1001 Section: History Chapter: Two World Wars