The Battle of Bud Bagsak was a battle during the Moro Rebellion phase of the Philippine–American War fought between June 11 and June 15, 1913. The defending Moro resistance fighters were fortified at the top of Mount Bagsak. The attacking Americans were led by General John 'Black Jack' Pershing. The Moros were entirely annihilated, including their leader, Datu Amil.:228-240