What kind of government system did the Caribs have?
The Caribs had a complicated organization to provide leadership in their warlike society. They had hereditary chiefs, nobles and priests, but military leaders were elected.
The ouboutou (or ubutu or obutu), or Great Captain, who was the commander in chief of all the warriors, was elected for his life. He was chosen for his prowess in battle and his great strength, and was treated with the utmost respect.
A country that is large is most likely to have a Federal System of Government. Any country can have a federal system if the population and/or groups representing the population agree to waive certain rights of a local government to a centralized form of government. The powers of the "federal" government can be weak or strong depending on powers granted to it or not granted to it.
It is a "federal presidential representative democratic republic" whose government is based on a congressional system, whereby the president of Mexico is both head of state and head of government, and of a multi-party electoral system. In short, it has a form of government much like that of the United States.