Kent's military heritage is well-known through popular tourist attractions such as Dover Castle or Chatham Dockyard, but there are also hundreds of lesser-known sites dotted around the county, each with their own story to tell. Most of the sites included here date from the Second World War but there are also many military installations from other eras, from the eerie remains of Fort Bortsal in Rochester to the magnificence of Fort Amherst, Britain's largest Napoleonic fortress. Local author and historian, Clive Holden has carefully documented each of these secret gems and photographed them in full color, giving the reader a wonderful insight into a lesser-known aspect of Kent's proud heritage as Britain's front line defense over many centuries.