This book reveals the fascinating story of the cat and mouse duel between the airship and another pioneering form of technology - the submarine during World War 1. Detailed cut-away drawings reveal the design and development of the airship, during and after the war, whilst full-colour illustrations depict the airship in dramatic action shots. A tragic accident in 1930 brought the airship's military service to an end, resulting in a tiny window in which they were used and little acknowledgement over the years. Ian Castle gives deserved attention to an aeronautical wonder that for a short amount of time played a crucial service to the defence of Britain.