The choreography of the landing continued to develop. Iwo Jima would represent the pinnacle of forcible amphibious assault against a heavily fortified shore, a complex art mastered painstakingly by the Fifth Fleet over many campaigns. Seventh Air Force Martin B-24 Liberator bombers flew in from the Marianas to strike the smoking island. Rocket ships moved in to saturate nearshore targets. Then it was time for the fighter and attack squadrons from Mitscher’s Task Force 58 to contribute. The Navy pilots showed their skills at bombing and strafing, but the troops naturally cheered the most at the appearance of F4U Corsairs flown by Marine Fighter Squadrons 124 and 213 led by Lieutenant Colonel William A. Millington from the fleet carrier Essex. Colonel Vernon E. Megee, in his shipboard capacity as air officer for General Smith’s Expeditionary Troops staff, had urged Millington to put on a special show for the troops in the assault waves. “Drag your bellies on the beach,” he told Millington. The Marine fighters made an impressive approach parallel to the island, then virtually did Megee’s bidding, streaking low over the beaches, strafing furiously. The geography of the Pacific War since Bougainville had kept many of the ground Marines separated from their own air support, which had been operating in areas other than where they had been fighting, most notably the Central Pacific. “It was the first time a lot of them had ever seen a Marine fighter plane,” said Megee. The troops were not disappointed.
Laden with battle-ready V Amphibious Corps Marines, LSMs (landing ship, medium) head for Iwo’s beaches. Landing craft of this type were capable of carrying five Sherman tanks. In the left background lies smoke-covered Mount Suribachi.
Department of Defense Photo (USMC) 109598
The planes had barely disappeared when naval gunfire resumed, carpeting the beach areas with a building crescendo of high-explosive shells. The ship-to-shore movement was well underway, an easy 30-minute run for the tracked landing vehicles (LVTs). This time there were enough LVTs to do the job: 68 LVT(A)4 armored amtracs mounting snub-nosed 75mm cannon leading the way, followed by 380 troop-laden LVT 4s and LVT 2s. The waves crossed the line of departure on time and chugged confidently towards the smoking beaches, all the while under the climactic bombardment from the ships. Here there was no coral reef, no killer neap tides to be concerned with. The Navy and Marine frogmen had reported the approaches free of mines or tetrahedrons. There was no premature cessation of fire. The “rolling barrage” plan took effect. Hardly a vehicle was lost to the desultory enemy fire.
The massive assault waves hit the beach within two minutes of H-hour. A Japanese observer watching the drama unfold from a cave on the slopes of Suribachi reported, “At nine o’clock in the morning several hundred landing craft with amphibious tanks in the lead rushed ashore like an enormous tidal wave.” Lieutenant Colonel Robert H. Williams, executive officer of the 28th Marines, recalled that “the landing was a magnificent sight to see—two divisions landing abreast; you could see the whole show from the deck of a ship.” To this point, so far, so good.
The first obstacle came not from the Japanese but the beach and the parallel terraces. Iwo Jima was an emerging volcano; its steep beaches dropped off sharply, producing a narrow but violent surf zone. The soft black sand immobilized all wheeled vehicles and caused some of the tracked amphibians to belly down. The boat waves that closely followed the LVTs had more trouble. Ramps would drop, a truck or jeep would attempt to drive out, only to get stuck. In short order a succession of plunging waves hit the stalled craft before they could completely unload, filling their sterns with water and sand, broaching them broadside. The beach quickly resembled a salvage yard.
LANDING PLAN
IWO JIMA
E.L. Wilson