It all started during the Battle of Mactan.
Magellan spent two weeks on the island of Cebu before that dark day he sailed to Mactan. He never attacked anyone on Cebu Island. Quite the opposite. He spent those two weeks baptizing the King and Queen of Cebu and their people. He erected them a holy cross, and gave them the Santo Nino. (Until this day, we Filipinos gather by the millions to celebrate Sinulog in honor of Santo Nino. Every Christian I know displays Santo Nino in a place of prominence in their home.) But Lapu Lapu, wanted no part of Santo Nino nor anything that went with Magellan. Lapu Lapu sent word from Mactan Island, that he would not be baptized. Magellan had 150 men and three ships, all with cannons, yet when he sailed to Mactan, in his effort to baptize Lapu Lapu, he took only 60 men and one ship. The other 90 men and two ships were left behind in Cebu. Of these 60 men, 11 stayed offshore with the ship’s longboats, only 49 made the trek to the Mactan shore. Not what you would call an invasion force.