Aruba left the Netherlands Antilles in 1986. When Curaçao and Sint Maarten did the same thing on 10 October 2010, the country no longer existed. The remaining BES Islands of Bonaire, Sint Eustatius and Saba now belong to the Netherlands and are called the Dutch Caribbean islands.
Because the Netherlands Antilles was a part of the Kingdom of the Netherlands, Queen Beatrix of the Netherlands proper was also the Queen of the Netherlands Antilles, but the islands' residents had a government of their own. Aruba, Curaçao and Sint Maarten are now separate countries within the Kingdom. All of these places still have King Willem-Alexander as their monarch today.