Cookies help us deliver our services. By using our services, you agree to our use of cookies.Learn moreGot it books.google.co.uk - From the time the Romans first set foot on England's shore in 55 B.C., the British Isles have faced a constant threat of foreign invasion. As a result, the landscapes of England, Scotland, and Ireland are dotted with ancient defensive fortifications as varied as their makers. Iron Age Celtic "hill...https://books.google.co.uk/books/about/British_Fortifications_Through_the_Reign.html?id=jpT2BJ0BF_MC&utm_source=gb-gplus-shareBritish Fortifications Through the Reign of Richard III