on the night of 12 march, general macarthur, his family left corregidor. macarthur went to australia. he promised the filipino people that he "shall return". after the failure of their first attack against bataan, the japanese sent artillery forces to the philippines. they had 190 artillery pieces, which included bigger guns like 150 mm cannons, and the type 96 240 mm field howitzer. the japanese sent new troops to gen. homma's 14th imperial army. toward the end of march, the japanese forces prepared for the final attack.