The Antillean Confederation was the vehement idea of Ramón Emeterio Betances about the need for natives of the Caribbean to unite into a regional entity that would seek to preserve the sovereignty and well-being of Cuba, the Dominican Republic, and Puerto Rico. Supporters of the idea wanted to free Cuba and Puerto Rico, later uniting them with the Dominican Republic, creating a united Spanish Caribbean nation, an idea that had a significant level of support in these islands during the mid-late 1800s. Some supporters even wanted to include Haiti or Colombia into this union, however this was not supported by all.