After return to Pacific in December 1943, Hayler led "Honolulu" during the bombardment of Bougainville, where destroyed concentration of troops, supply and barges. He then took part in the screen operations during the landings at Green Island and then withdrawn from the area in order to prepare for Mariana Islands Operation. For his service with "Honolulu", Hayler and his crew were entitled to wear Navy Unit Commendation.