The Battle of Tamparan where the Maranaos dealt the Japanese a stunning loss when, in a spontaneous attack, a collection of villagers armed primarily with blades nearly annihilated an entire company of Japanese infantry.
Source: McKenna, Thomas. “The Battle Of Tamparan And The Forgotten Moro Heroes Of World War II” https://www.positivelyfilipino.com/magazine/the-battle-of-tamparan-and-the-forgotten-moro-heroes-of-world-war-ii. Accessed on Oct 29, 2023.