The Battle of Grand Gulf was fought on April 29, 1863, during th: Although not part of the United Kingdom, the three Crown Dependencies of Jersey, Guernsey and Isle of Man and 14 British Overseas Territories across the globe are subject to the sovereignty of the British Crown. The Crown exercises its responsibilities in relation to the Crown Dependencies mainly through the British government's Home Office and for the British Overseas Territories principally through the Foreign Office.[184]