If you're talking about Kalinagos (Caribs) then in peace times they had laws made by the village head man (tiubutuli hauthe) and in war times they has a commander-in-chief who planned raids, chose captains and distributed prizes.
The Arawaks had a main leader of the entire society called the cacique. This position was a hereditary title and there were sub-caciques who assisted him in various activities. The Caribs, however, had no formal leader. A leader would only emerge during wars called the oboutu and he was only the leader of his canoe. There was also the village headman or tiubutuli hauthe who made important decisions in peacetime for his particular family.In the Carib communities, the women ate separately from the men. The men also lived together in a carbet. This was not so for the Arawak communities.The Arawaks depended mainly on 'subsistence farming'. The Caribs were less of agriculturists and preferred to engage in fishing and hunting.