sentences:  Hostilities resumed in 1756 when an army of 3,000 Spanish, Portuguese, and native auxiliary soldiers under José de Andonaegui and Freire de Andrade was sent to subdue the Guaraní rebels.On February 7, 1756 the leader of the Guaraní rebels, Sepé Tiaraju, was killed in a skirmish with Spanish and Portuguese troops.Three days later the Guaraní were defeated at the battle of Caiboaté.