Jersey and the other Channel Islands represent the last remnants of the medieval Dukedom of Normandy that held sway in both France and England. These islands were the only British soil occupied by German troops in World War II. Jersey is a British crown dependency but is not part of the UK. However, the UK Government is constitutionally responsible for its defense and international representation. English 94.5% (official), Portuguese 4.6%, and other 0.9%.