The Second Battle of Guararapes was the second and decisive battle in a conflict called the Pernambucana Insurrection, between Dutch and Portuguese forces in February 1649 at Jaboatão dos Guararapes in Pernambuco. The defeat convinced the Dutch "that the Portuguese were formidable opponents, something which they had hitherto refused to concede." The Dutch still retained a presence in Brazil until 1654 and a treaty was signed in 1661.