The 20th century will be remembered as the century of technical innovations and social progress and revolutions that changed the world. But it also spawned numerous global and neverending local wars that have cast a shadow over the world. This text bears witness to a century of warfare in over 700 photographs taken on the front lines by four generations of photographers and combatants. Courage and honour, self-sacrifice, terror and brutality is all here and explained in the text by the author.