on 3 april, the orion-bagac line was bombed by 100 aircraft and artillery bombed by 300 artillery pieces. the japanese 65th brigade and 4th division attacked the left side of ii corps. by 8 april, the senior u.s. commander on bataan, maj. gen. edward p. king, offered to surrender. the next morning, 9 april 1942, gen. king met with maj. gen. kameichiro nagano. the tired and starving american and filipino defenders on the bataan peninsula surrendered.