Guernsey and the other Channel Islands represent the last remnants of the medieval Dukedom of Normandy, which held sway in both France and England. The islands were the only British soil occupied by German troops in World War II. The Bailiwick of Guernsey is a British crown dependency but is not part of the UK or of the EU. However, the UK Government is constitutionally responsible for its defense and international representation. The Bailiwick of Guernsey consists of the main island of Guernsey and a number of smaller islands including Alderney, Sark, Herm, Jethou, Brecqhou, and Lihou.