Europe, a major setting for total war (1914-1945)

In less than 30 years, Europe has been devastated by two conflicts that have had a lasting impact on states and societies : a turning point in world history, and the foundation for future disruption in the organization of the world after 1945.

From weakened democracies to European totalitarianism, from the First World War, in which civilians and soldiers mingled in a common carnage, to the Second World War of annihilation, through defeated France, how could it have come to this ?