My father in law was a Filipino kid around 9-10 during WW2. Rural area. He was rounded up for some unknown reason. Had nothing to tell the Japanese. Had no idea what was happening. They hung him by his heels and beat him to a pulp.
He loved Americans. Like a lot of Filipinos of his generation, he hated the Japanese.
Filipino kids and teenagers caused a lot of trouble for the Japanese. They were fierce fighters. I saw a film about them ata meeting of the concentration camp survivors.