[2]: 228–240 In March 1913, Datu Amil and 1,500 warriors negotiated with the Sultan of Sulu and other Moros allied with the Americans, pledging to surrender their weapons.

[2]: 229 Noticing the Moros only fled to Bud Bagsak when provoked by government troops, General John J. Pershing devised a policy of keeping the troops in their island garrisons in the hopes the women and children would come down from the mountain cottas (fortified earthworks which were surrounded by deep ditches and camouflaged pits containing bamboo shafts on which to impale their enemies [5]).

[2]: 231 The horseshoe-shaped volcanic crater, open on the northwest at a knoll called Languasan, was protected by five cottas, Bunga, Bagsak, Puhagan, Matunkup and Puyacabao, ranging from 1,440 to 1,900 feet in elevation.

[2]: 238  When the assault stalled, Pershing joined other American officers in the forefront of danger, helping stop a Moro counterattack.

Several smaller skirmishes between Moro bands and Philippine Constabulary forces occurred in the following months, with the last of these clashes taking place in Talipao in October 1913.

"[8] Pershing was relieved of his post as governor of Moro Province in December 1913 by Philippine Governor-General Francis Burton Harrison and replaced by Frank Carpenter, a civilian official.