The United States of America is a federal constitutional republic comprising fifty states and a federal district...
, located in the northeastern Caribbean, east of the Dominican Republic
The Dominican Republic is a nation on the island of La Hispaniola, part of the Greater Antilles archipelago in the Caribbean region. The western third of the island is occupied by the nation of Haiti, making Hispaniola one of two Caribbean islands that are shared by two countries...
and west of both the United States Virgin Islands
United States Virgin Islands
The Virgin Islands of the United States are a group of islands in the Caribbean that are an insular area of the United States. The islands are geographically part of the Virgin Islands archipelago and are located in the Leeward Islands of the Lesser Antilles.The U.S...
and the British Virgin Islands
British Virgin Islands
The Virgin Islands, often called the British Virgin Islands , is a British overseas territory and overseas territory of the European Union, located in the Caribbean to the east of Puerto Rico. The islands make up part of the Virgin Islands archipelago, the remaining islands constituting the U.S...
Puerto Rico (Spanish for "rich port") comprises an archipelago
An archipelago , sometimes called an island group, is a chain or cluster of islands. The word archipelago is derived from the Greek ἄρχι- – arkhi- and πέλαγος – pélagos through the Italian arcipelago...
that includes the main island of Puerto Rico and a number of smaller islands, the largest of which are Vieques
Vieques, Puerto Rico
Vieques , in full Isla de Vieques, is an island–municipality of Puerto Rico in the northeastern Caribbean, part of an island grouping sometimes known as the Spanish Virgin Islands...
Culebra, Puerto Rico
Isla Culebra is an island-municipality of Puerto Rico originally called Isla Pasaje and Isla de San Ildefonso. It is located approximately east of the Puerto Rican mainland, west of St. Thomas and north of Vieques. Culebra is spread over 5 wards and Culebra Pueblo...
, and Mona
Mona, Puerto Rico
Mona is the third largest island of the archipelago of Puerto Rico, after the main island of Puerto Rico and Vieques. It is the largest of three islands located in the Mona Passage, a strait between the Dominican Republic and Puerto Rico, the others being Monito Island and Desecheo Island...