Anda took what precautions were available to restrain the Moro pirates, but great difficulties arose in his way. Ali-Mudin, whom the English had restored to his sway in Joló, and his son Israel (in whose favor the father had abdicated) were friendly to the Spaniards, with many of their dattos; but another faction, led by Zalicaya, the commander of the Joloan armadas, favored the English, who had established themselves (1762) on the islet of Balambangan [19] in the Joló archipelago, which they had induced Bantilan to grant them; and the English were accused of endeavoring to incite the Joloans against the Spaniards by intrigue and bribery. Anda decided to send an expedition to make protest to the English against their occupation of this island, as being part of the Spanish territory, and entrusted this mission to an Italian officer named Giovanni Cencelly, who was then in command of one of the infantry regiments stationed at Manila; the latter sailed from Zamboanga December 30, 1773, bearing careful instructions as to his mode of procedure, and to avoid any hostilities with the English and maintain friendship with the Joloans. But Cencelly seems to have been quite destitute of tact or judgment, and even of loyalty to his governor; for he disobeyed his instructions, angered the Joloans, [20] who could hardly be restrained by Ali-Mudin from massacring the Spaniards, and at the end of three weeks was obliged to return to Zamboanga. He was on bad terms with the commandant there (Raimundo Español), and refused to render him any account of his proceedings at Joló; and he even tried to stir up a sedition among the Spanish troops against Español. The English gladly availed themselves of this unfortunate affair to strengthen their own position in Joló, stirring up the islanders against Spain and erecting new forts. Later, however, the English at Balambangan showed so much harshness and contempt for the Moro dattos (even putting one in the pillory) that the latter plotted to surprise and kill the intruders; and on March 5, 1775, this was accomplished, the English being all slain except the commandant and five others, who managed to escape to their ship in the harbor. The fort was seized by the Moros, who thus acquired great quantities of military supplies, arms, money, and food, with several vessels. [21] Among this spoil were forty-five cannons and $24,000 in silver. Elated by this success, Tenteng, the chief mover of the enterprise, tried to secure Zamboanga by similar means; but the new commandant there, Juan Bayot, was on his guard, and the Moros were baffled. Tenteng then went to Cebú, where he committed horrible ravages; and other raids of this sort were committed, the Spaniards being unable to check them for a long time. A letter written to the king by Anda in 1773 had asked for money to construct light armed vessels, and a royal order of January 27, 1776, commanded that 50,000 pesos be sent to Filipinas for this purpose.