<Li> ^ "The Star - Spangled Banner" serves as the national anthem for the United States of America and its territories . </Li> <Li> ^ The term' Commonwealth' does not describe or provide for any specific political status or relationship . It has, for example, been applied to both states and territories . When used in connection with areas under U.S. sovereignty that are not states, the term broadly describes an area that has a constitution of its adoption . </Li> <P> Puerto Rico (Spanish for "Rich Port"), officially the Commonwealth of Puerto Rico (Spanish: Estado Libre Asociado de Puerto Rico, lit . "Free Associated State of Puerto Rico") and briefly called Porto Rico, is an unincorporated territory of the United States located in the northeast Caribbean Sea . </P> <P> An archipelago among the Greater Antilles, Puerto Rico includes the main island of Puerto Rico and a number of smaller ones, such as Mona, Culebra, and Vieques . The capital and most populous city is San Juan . Its official languages are Spanish and English, though Spanish predominates . The island's population is approximately 3.4 million . Puerto Rico's history, tropical climate, natural scenery, traditional cuisine, and tax incentives make it a destination for travelers from around the world . </P>

What is the relationship of puerto rico to the united states