Dispatch: U.S. Military History Magazine

Welcome to Headline Wednesday from Dispatch: U.S. Military History Magazine, developed by Trackpads dot com.

Each week, we take one pivotal moment from United States military history and follow it from the first warning signs to the final outcome.

Today we go to the black sands of Iwo Jima in the Second World War for the story of the climb to Suribachi.

From the black sand at the southern tip of Iwo Jima, Mount Suribachi looked deceptively close. But every Marine who had fought across that beach knew the volcano was farther, steeper, and more dangerous than it appeared. Its slopes were cut by old lava flows, shell scars, loose ash, and jagged rock. On the morning of February twenty third, Nineteen Forty Five, a small patrol from the Twenty Eighth Marine Regiment began working its way upward while the battle still raged below.

Behind them, the southern beaches were a chaotic sprawl of wrecked landing craft, burning vehicles, bulldozed sand, and foxholes scraped into volcanic grit. Naval gunfire cracked from offshore, aircraft struck Japanese positions farther north, and Marines around Suribachi’s base were still clearing bunkers and caves that had survived days of bombardment. The men climbing the mountain felt exposed. They knew hidden firing ports and tunnels might still hold Japanese defenders watching every step.

The patrol moved slowly, pausing at folds in the ground and testing each route like mountaineers who also happened to be riflemen. Their gear bit into shoulders already worn raw by days of combat. Volcanic dust mixed with the sharp smell of cordite. A single hidden machine gun could have torn through the entire group. Step by step, though, they gained the crater rim and reached the top. There, they raised a small American flag.

When that flag went up, a shout rolled out from the ships offshore and from Marines scattered across the lower slopes. Some could barely see the cloth in the wind, but they knew what it meant. For a moment, amid explosions, smoke, and radio chatter, the volcano dominating the southern end of Iwo Jima was in American hands. Later that day, a larger flag was raised so more men on the island and offshore could see it clearly. The image would echo far beyond the island itself.

The island beneath those Marines was small, ugly, and brutally important. Iwo Jima was only about eight square miles of volcanic rock, but it sat roughly halfway between the bomber fields in the Mariana Islands and the Japanese home islands. For American air planners, it lay under the main route flown by long range B dash Twenty Nine bombers. For the United States, it could become an emergency landing field for damaged aircraft and a base for fighter escorts. For Japan, it was a warning post and a place to harass bombers heading north.

By early Nineteen Forty Five, the Pacific war had shifted decisively. The United States Navy had shattered much of Japan’s carrier force, seized key Central Pacific bases, and begun long range bombing of the home islands. Japanese leaders understood that every island lost brought American airpower closer. Their forces on Iwo Jima were ordered to hold, bleed the invaders, and delay the advance as long as possible. There would be no easy surrender and no plan to meet the Marines in open beach charges. This would be a buried defense.

Japanese engineers and infantry spent months turning Iwo Jima into a fortress. Tunnels honeycombed the rock beneath Suribachi and the northern high ground, linking command posts, storage rooms, and firing positions. Artillery and machine guns were hidden in concealed positions with overlapping fields of fire into the beaches and landing zones. The defenders would survive bombardment underground, wait for the Marines to come ashore, and then fight for every yard.

The stakes reached far beyond the Marines of the Third, Fourth, and Fifth Divisions. Every B dash Twenty Nine crew flying over the Pacific, every planner looking toward a possible invasion of Japan, and every family following the war at home had some connection to what happened on Iwo Jima. If the island fell, it could save damaged bomber crews and tighten the air campaign against Japan. If it became a drawn out slaughter for too little gain, it would force painful questions about the final phase of the Pacific war.

That is why a flag on Suribachi’s crater rim mattered. It was not just cloth in the wind. It was a visible sign in the middle of a grinding test of strategy, endurance, and will. The volcano was only one part of the island, and much of the worst fighting still lay ahead. But the first great obstacle on Iwo Jima’s southern flank had been seized and held.

The path to that summit began long before the patrol started climbing. In Nineteen Forty Four, as American forces advanced through the Marshalls and Marianas, planners studied the Volcano Islands and the small black island of Iwo Jima. Its airfields and radar sites gave Japan a forward post along the route used by American bombers. As the Mariana air bases came online and bombing of Japan intensified, the decision hardened that Iwo Jima would have to be taken.

On the Japanese side, the defense fell to Lieutenant General Tadamichi Kuribayashi. He knew he could not defeat the full weight of the United States in the Central Pacific, but he believed he could make the invaders pay so heavily that they might hesitate before landing on the home islands. He rejected the pattern of earlier island battles, where defenders were wasted in frontal beach attacks. Instead, he ordered his men into the rock, building tunnels, bunkers, gun positions, and command posts designed to survive bombardment and keep fighting.

Mount Suribachi became a hollowed gun platform. Its slopes were riddled with galleries and firing points covering the beaches and low ground below. Farther north, concealed artillery and machine gun positions covered the airfields and approaches. Kuribayashi’s goal was to turn the entire island into a trap. The Marines would be allowed to come ashore, then they would be bled as they tried to move inland.

American planners answered with Operation Detachment, a massive amphibious assault supported by battleships, cruisers, carriers, and a fleet of transports and landing craft. Intelligence estimates predicted a brutal fight, but they still underestimated the depth of the tunnel system and the determination of the defenders. For days before the landing, ships and aircraft hammered the island with bombs and shells. Much of that fire blasted the surface while Japanese positions remained alive deep inside the rock.

When the assault waves reached the southeastern beaches on February nineteenth, the Marines did not find firm sand. They stepped into volcanic ash that behaved like dry coffee grounds, swallowing boots and bogging vehicles. For a few uneasy minutes, enemy fire seemed lighter than expected. Then Japanese guns, mortars, and machine guns opened in carefully timed volleys from Suribachi’s flanks and hidden strongpoints inland. The landing zone became a killing ground.

Marines struggled to move off the tide line. Bulldozers and engineers tried to carve roads through the ash. Tanks bogged down, burned, or were knocked out by anti tank guns firing from positions no one could clearly see. Casualties mounted from direct hits, shrapnel, and ricochets skipping through the grit. Commanders fought to keep their units moving because stopping on the beach meant becoming an easier target. Motion itself became survival.

On the left of the landing area, the Twenty Eighth Marines had a critical mission. They were to drive across the island’s narrow waist and cut Mount Suribachi off from the rest of Iwo Jima. That meant advancing under fire from above while clearing pillboxes, caves, and tunnels around the volcano’s base. Flame tanks, flamethrowers, grenades, demolitions, and close range rifle fire became essential. Each bunker was a separate fight, and progress was measured in yards.

Inside the tunnels, Japanese defenders followed their plan. Many weapons stayed silent during the first bombardments and early assault waves, hiding their locations. When Marines moved into planned killing zones, the guns opened suddenly. Then crews shifted through underground passages to new firing ports. To the men on the surface, it felt less like attacking a normal defensive line and more like fighting the island itself.

By the second and third days, the Marines had carved out a fragile lodgment at the southern end of Iwo Jima. The Twenty Eighth Marines gradually tightened the ring around Suribachi while other regiments fought to expand the beachhead and secure the first airfield to the north. The volcano loomed over everything. As long as Suribachi remained in Japanese hands, the beaches and low ground were under enemy observation and fire.

Only after days of brutal fighting did the patrol climbing toward the crater rim have a chance. The ground beneath their boots had been bought by relentless combat and heavy casualties. Even when the first flag went up, Marines below were still clearing pockets on the slopes and turning their attention toward the central plateau and northern ridges. The fight for Suribachi was dramatic, but it was only the opening act.

The raising of the flags marked the emotional turning point. The first, smaller flag told Marines on the beaches that Suribachi was in American hands. The second, larger flag was visible from more of the island and from the ships offshore. The flags did not end the battle or silence every Japanese gun in the mountain, but they changed how the fight felt. For men who had felt the island killing them step by step, the sight proved that something had finally gone their way.

Still, Iwo Jima was not won by one image. It was won by grinding combined arms work carried out day after day. Infantry, tanks, engineers, artillery, naval gunfire, and air support reduced Japanese positions one by one. Some caves were sealed. Others were burned out. Strongpoints that could not be bypassed were methodically destroyed. Company and platoon leaders made constant decisions about when to move, when to wait for supporting fire, and how to use shell holes and folds in the ground for cover.

Kuribayashi’s defense was doing what he intended in one sense. It inflicted terrible casualties and forced the Marines to fight for every yard. But the Japanese garrison had no path to relief, resupply, or withdrawal. Every bunker destroyed was gone forever. Every tunnel complex lost narrowed the defense. The true turning point was the growing recognition on both sides that the Marines would not break, and the Japanese defenders had nowhere left to go.

As Marines secured Suribachi and pushed toward the central and northern airfields, air and naval support kept pressure on the remaining positions. Medical evacuation teams pulled wounded men off the island as quickly as conditions allowed. Logistics crews kept ammunition, water, fuel, and supplies moving across the dangerous beaches and up to the front. Sustaining the fight was its own battle, and it mattered as much as any single assault.

When organized resistance finally collapsed after weeks of combat, Iwo Jima looked like the surface of another world. Ridges and ravines were chewed up by shells, airfields were cratered and patched, and the black beaches were scarred with tracks and wreckage. Marine divisions had suffered severe losses. Japanese garrisons had been virtually destroyed, with only small numbers captured alive from the tunnels. For the men walking among the caves afterward, the end did not feel clean or simple.

Operationally, the consequences were clear. Iwo Jima’s airfields became emergency havens for damaged bombers returning from raids over Japan. Crews that might have been lost over the Pacific could now limp into a landing strip on the island they had once flown past under enemy fire. Fighter squadrons based there extended the reach and protection of bombing operations. At the same time, the cost of the battle forced planners to reckon with what heavily defended ground might demand in future operations, including Okinawa and a possible invasion of Japan.

The flag raising on Suribachi became one of the most powerful images in American military history. Photographs and later memorials turned a small unit task into a national symbol of sacrifice and determination. But veterans and students of the battle know that the famous image came early, while much of the deadliest fighting still lay ahead. The symbol is real, but it is only part of the truth. Behind it were weeks of fear, exhaustion, wounds, and loss.

Today, Iwo Jima offers more than a single dramatic picture. It is a hard lesson in amphibious warfare against a determined, deeply embedded enemy. It shows how decisions made in planning rooms became exhausted men crawling through ash under fire. It shows how a small island could shape air campaigns, strategic choices, and national memory. The climb to Suribachi matters because it ties a flag in the wind to the lived experience of thousands who fought there and never came home.

You can hear more of these stories in the narrated Headline Wednesday features in the Dispatch audio editions, and you can find daily discussion in the United States Military History Group on LinkedIn. Headline Wednesday is developed by Trackpads dot com as part of Dispatch: U.S. Military History Magazine. Thank you for listening to this account of Iwo Jima and the climb to Suribachi. The story, and the cost, remain with us.