 Because of the strict radio silence imposed on the forces, Shima was unable to synchronize his movements with those of Nishimura's.Shima's force—two heavy cruisers, a light cruiser and four destroyers—reached the battle after Nishimura's forces had run into a deadly trap and suffered losses.During the nighttime battle, Shima fired 16 torpedoes at two islands he mistook for American ships.