Lieutenant Colonel Howard Perry commanded the regiment in Digos Sector but was called to VMF headquarters to be one of the staff and was replaced by Major Joseph Webb.

Japanese Navy warships provided fire support which destroys defenders ready positions.

A QF 2.95inch Mountain detachment under Captain Manuel Acosta was brought along to provide fire support.

Lieutenant Colonel Howard Perry replaced Lieutenant Colonel Howard Frissell replaced as Digos force commander and the availability of Division special troops ordered several raids to burn supplies and bodegas in Padada, for these resulted Japanese not to intensify its campaigns due to supply.

Elements of 3rd PC Regiment joined the fighting along with the ragtag moro warriors augmenting the force.

On April 16, 1942, Lieutenant Colonel John H. McGee was promoted and assumed command of Digos Force.

1st Battalion 103rd was moved to Pikit, Cotabato to rest and prevent Japanese landing using Mindanao River.

It inflicted massive casualties to the invading force and it was so successful that it almost thrown the Japanese back to their ship.