In particular , rebels in Cavite led by Mariano Álvarez and Emilio Aguinaldo ( who were from two different factions of the Katipunan ) won major early victories .

The naval Incident Hostile_encounter of Pacocha took place Process_start on 29 May 1877 when Nicolás de Piérola was leading Causation a revolution Change_of_leadership to overthrow Change_of_leadership then Peruvian President Mariano Ignacio Prado .