The maritime boundary between the United Kingdom’s Territory of Anguilla and the French Overseas Departments of St. Martin and St. Barthelemy was established through a bilateral agreement that was reached in 1996. The boundary is based on the equidistance methodology and is 83 nautical miles in length. In 2021, France and the United Kingdom extended the maritime frontier between St. Martin and St. Barthelemy and Anguilla an additional 0.36 nautical miles to the tripoint with Antigua and Barbuda. The tripoint with the Netherlands (on behalf the island of Saba) has yet to be defined.