Late in the afternoon, Lieutenant Colonel Donn J. Robertson led his 3d Battalion, 27th Marines, ashore over Blue Beach, disturbed at the intensity of fire still being directed on the reserve forces this late on D-day. “They were really ready for us,” he recalled. He watched with pride and wonderment as his Marines landed under fire, took casualties, stumbled forward to clear the beach. “What impels a young guy landing on a beach in the face of fire?” he asked himself. Then it was Robertson’s turn. His boat hit the beach too hard; the ramp wouldn’t drop. Robertson and his command group had to roll over the gunwales into the churning surf and crawl ashore, an inauspicious start. The bitter battle to capture the Rock Quarry cliffs on the right flank raged all day. The beachhead remained completely vulnerable to enemy direct-fire weapons from these heights; the Marines had to storm them before many more troops or supplies could be landed. In the end, it was the strength of character of Captain James Headley and Lieutenant Colonel “Jumping Joe” Chambers who led the survivors of the 3d Battalion, 25th Marines, onto the top of the cliffs. The battalion paid an exorbitant price for this achievement, losing 22 officers and 500 troops by nightfall. The two assistant division commanders, Brigadier Generals Franklin A. Hart and Leo D. Hermle, of the 4th and 5th Marine Divisions respectively, spent much of D-day on board the control vessels marking both ends of the Line of Departure, 4,000 yards off shore. This reflected yet another lesson in amphibious techniques learned from Tarawa. Having senior officers that close to the ship-to-shore movement provided landing force decision-making from the most forward vantage point. By dusk General Hermle opted to come ashore. At Tarawa he had spent the night of D-day essentially out of contact at the fire-swept pierhead. This time he intended to be on the ground. Hermle had the larger operational picture in mind, knowing the corps commander’s desire to force the reserves and artillery units on shore despite the carnage in order to build credible combat power. Hermle knew that whatever the night might bring, the Americans now had more troops on the island than Kuribayashi could ever muster. His presence helped his division forget about the day’s disasters and focus on preparations for the expected counterattacks.