During the First World War, commonly referred to as the Great War, some of the most lethal weapons in human history were employed. Europeans anticipated traditional cavalry assaults and infantry bearing bayonets when they entered the war. However, their expectations were drastically altered when they discovered that the continent was besieged by U-boats, machine guns, lethal chemical... https://worldswar3.com/top-10-most-dangerous-weapons-in-world-war-i/