The ABC islands are the physical group of Aruba, Bonaire, and Curaçao, the three westernmost islands of the Leeward Antilles in the Caribbean Sea. These islands have a shared political history and a status of Dutch underlying ownership, since the Anglo-Dutch Treaty of 1814 ceded them back to the Kingdom of the Netherlands, as Curaçao and Dependencies from 1815. They are a short distance north of the Falcón State, Venezuela. Aruba and Curaçao are autonomous, self governing constituent countries of the Kingdom of the Netherlands, while Bonaire is a special municipality of the Netherlands. Territories of the Kingdom of the Netherlands, the countries, and its special municipalities, are outside the European Union; citizens have Dutch nationality and the former colonial power benefits from preferential trade, mineral and natural resource rights, particularly offshore.