Is Cuba an Island or a country?

Cuba, country of the West Indies, the largest single island of the archipelago, and one of the more-influential states of the Caribbean region.

How are they influential?

One of the reasons are Cubans who have been redefining themselves as an “Afro-Latin American people” since the late 1960s, offered technical, commercial, and military assistance to several states in Africa, Latin America, and the Caribbean region. Cuba lost considerable influence among the nonaligned nations when it supported the Soviet invasion of Afghanistan in 1979.