Armageddon's Walls: British Pill Boxes, 1914-1918

The British Army and her commonwealth Allies went to war in 1914 with little knowledge and experience of constructing permanent, shell proof protective structures. Some masonry fortifications, such as defensive blockhouses in South Africa, had been built but the Royal Engineers of the Army were more versed in simple temporary defences suitable for mobile warfare. Home defences were a limited number of forts around naval ports, and Martello Towers on the east coast. It was considered that th...