The Shermans joined Wave 5 of the ship-to-shore assault. The tanks negotiated the gauntlet of Japanese fire without incident, but five were lost when they plunged into unseen shell craters in the turbid water. Ashore, the Marines’ lack of operating experience with medium tanks proved costly to the survivors. Local commanders simply ordered the vehicles inland to attack targets of opportunity unsupported. All but two were soon knocked out of action. Enterprising salvage crews worked throughout each night to cannibalize severely damaged vehicles in order to keep other tanks operational. Meanwhile, the Marines learned to employ the tanks within an integrated team of covering infantry and engineers. The Shermans then proved invaluable in Major Ryan’s seizure of Green Beach on D+1, the attacks of Major Jones and Major Crowe on D+2, and the final assault by Lieutenant Colonel McLeod on D+3. Early in the battle, Japanese 75mm antitank guns were deadly against the Shermans, but once these weapons were destroyed, the defenders could do little more than shoot out the periscopes with sniper fire. Colonel Shoup’s opinion of the medium tanks was ambivalent. His disappointment in the squandered deployment and heavy losses among the Shermans on D-Day was tempered by subsequent admiration for their tactical role ashore. Time and again, Japanese emplacements of reinforced concrete, steel, and sand were reduced by direct fire from the tanks’ main guns, despite a “prohibitive ammunition expenditure.” Shoup also reported that “the so-called crushing effect of medium tanks, as a tactical measure, was practically negligible in this operation, and I believe no one should place any faith in eliminating fortifications by running over them with a tank.” The Marines agreed that the advent of the Shermans rendered their light tanks obsolete. “Medium tanks are just as easy to get ashore, and they pack greater armor and firepower,” concluded one battalion commander. By the war’s end, the American ordnance industry had manufactured 48,064 Sherman tanks for employment by the U.S. Army and Marine Corps in all theaters of combat. ] _D+1 at Betio,_ _21 November 1943_ The tactical situation on Betio remained precarious for much of the 2d day. Throughout the morning, the Marines paid dearly for every attempt to land reserves or advance their ragged beachheads. The reef and beaches of Tarawa already looked like a charnel house. Lieutenant Lillibridge surveyed what he could see of the beach at first light and was appalled: “... a dreadful sight, bodies drifting slowly in the water just off the beach, junked amtracks.” The stench of dead bodies covered the embattled island like a cloud. The smell drifted out to the line of departure, a bad omen for the troops of 1st Battalion, 8th Marines, getting ready to start their run to the beach.