In July, 1824, the Pernambucanos threw down the gauntlet by proclaiming the "Confederation of the Equator." This was intended to be a federal republic after the model of the union between the provinces of Venezuela, Colombia, and Ecuador. The adhesion of Pernambuco, Parahyba, Rio Grande do Norte, and Ceara could be counted upon, and that of Maranhao, Para, and Bahia was hoped for. Bahia, however, remained apathetic, and that city furnished Pedro a convenient base for his operations. He sent Admiral Cochrane to blockade and bombard Pernambuco, while an army marched up the coast. Factional civil war had broken out in the interior of the revolted provinces, and the imperial forces were joined by Carvalho's local enemies. The patriots fought desperately, but were overwhelmed before they could provide themselves with arms or organise their resistance. The city had to surrender on the 17th of September, though fighting was kept up for a long time in the interior. Cochrane sailed north, reducing the ports one by one, and by the end of the year the serious resistance was at an end. The victorious Emperor punished the patriots with ruthless severity, sending many of the leaders to the scaffold, and establishing military tribunals which inaugurated a reign of terror. An Englishman named Ratcliff was brought to Rio and hanged, not so much for his part in the insurrection as because he had once offended Pedro's mother in Portugal. "She offered a reward for his head," said the Emperor as he signed the death-warrant, "but now she shall have it for nothing." In the spring of 1825 it seemed as if Pedro was certain to establish himself at the head of a military despotism extending from the Amazon to the Plate. Before the Pernambuco insurrection his revenue and recruits had been drawn solely from Rio and the adjacent provinces. Now his fleet and disciplined army, recruited by impressment and concentrated under his eye, enabled him to get revenue from all the ports and to hold the provinces in check. His sea-power and his possession of the purse-strings gave him a tremendous advantage. He imported Germans, Swiss, and Irish with a view to forming a corps of janizaries. All Brazil seemed submissive, and the enthusiasm which had flamed out among the Brazilians in 1821 and 1822 had died down, leaving as its only permanent effect a strong sentiment against reunion with Portugal.