History marks the advent of modern warfare in the 20th century with this epic DVD collection. Discover how the First World War changed the face of battle forever from hand-to-hand combat to high-tech warfare, in History of WWI: the first modern war. Experience the acrobatic encounters of flying aces high above the battlefield in Dogfights. Watch the Normadny assault in spectacular high definition in D-Day in HD, and learn soldiers' personal stories...