December 19th, 1944. The East China Sea groaned under a winter sky. Cold winds slashed across gray waves. Cutting through the mist was the silhouette of Japan’s last great hope. The aircraft carrier Unrew. Beneath the waves, silence. The American submarine USS Redfish prowled like a wolf in the dark. Inside the cramped control room, men held their breath as sonar pings echoed.
Each note was a heartbeat in the hunt. In the torpedo room, sailors hands hovered over levers, sweat dripping despite the icy sea outside. Then came the order. Fire. A hiss of compressed air. Four torpedoes shot into the black water, unseen and unstoppable. Seconds later, the ocean erupted. A thunderclap tore across the horizon.
Flames leapt skyward and steel screamed as the Unreal convulsed under the blow. In just 7 minutes, more than 1,200 men would vanish beneath the waves. For America’s sailors, this was the moment when Hunter and Hunted decided the fate of Japan’s last carrier. From the glory of Pearl Harbor to the nightmare of the East China Sea, this is the story of Unreal and the men who lived and died as she plunged into history.
Lieutenant Kenji Sado leaned against the railing of Unreu’s flight deck. The winter chills seeped through his gloves. At 27, he was already a hardened officer. The war had stripped away any illusions of glory. Below him, mechanics worked on planes prepared for kamicazi missions in the Philippines. Desperate weapons for a desperate empire.
On paper, Unreu looked sleek and powerful. But Kenji knew the truth. Her hangers were half empty. Her air group was skeletal. Japan no longer had the pilots or the fuel to restore her strength. She was a blade without an edge. Sent to see more as a symbol than a weapon. Still, duty weighed heavily. The men around him worked with practiced calm, but he saw unease in their eyes.
Every sailor had heard the rumors. American submarines were everywhere. Just weeks earlier, Shinano, the largest carrier ever built, had gone down in the same waters. If Shinano could fall, what chance did Unriu have? Kenji gripped the railing tighter. He thought of home, of parents who believed their sons served on an invincible ship.

He thought of comrades joking quietly to hide their fear. The sea was calm, but beneath its gray surface lurked unseen enemies. Something told him this voyage would not end in the Philippines. Far below the waves, the submarine USS Redfish cut silently through the dark. In the control room, red lamps cast long shadows across tense faces.
Commander Lu D. McGregor studied the instruments. Every sonar ping came back with the same answer. Something massive was moving ahead. Carrier, he muttered, lowering the periscope. The silhouette was unmistakable. Broad flight deck, tall island superructure. His men straightened, the air thick with anticipation. This was no frighter.
This was prey worth the risk. The Redfish was a Balau class submarine. She ei carried the new Mark1 18 torpedo, electric, silent, and deadly. Unlike older steam models, it left no telltale wake. Around McGregor, the crew worked quickly in the cramped heat. In the torpedo room, sailors brushed cold steel as if reassuring themselves.
One shot could change the war, one whispered. Perhaps not the whole war, but sinking a carrier meant fewer planes striking American fleets. Compared to the giant above, red fish was small, almost fragile. But in these waters, size didn’t matter. One well- aimed spread of torpedoes could do what bombs and shells could not.
McGregor’s voice cut through the quiet. Steady, boys. We’ve got a big one. The hunt was on. On the surface, Unreu still looked formidable. But by late 1944, she was almost defenseless. Japan no longer had trained pilots to fly her planes. Escort ships were few. Her radar was weak.
Her anti-ubmarine screen thin against hunters like Redfish. She was nearly blind. It was an uneven duel. A vast carrier bristling with aircraft yet powerless against the silence below. In the East China Sea, the stage was set. The hunt began 3 days earlier. On the night of December 16th, Redfish picked up faint radar contacts.
Japanese ships moving south. Commander McGregor ordered silent pursuit. The submarine shadowed them through the dark. Hours turned into days. Sonar pings echoed like a heartbeat. Inside, men whispered, ate cold rations, and slept in shifts. Each time the sonar rang with the hollow sound of a massive hull, their pulses quickened.
By dawn on the 19th, the target was clear. A carrier escorted, but vulnerable. McGregor gave the order. We close in at daybreak. This one doesn’t get away on Unreu’s deck. Kenji Sado felt the icy wind bite his face. It was just past 10. The sea was calm, but a strange stillness hung in the air.
Suddenly, the claxon blared, “Trpedo!” Starboard side. The ship lurched. Sailors shouted, “Hard to starboard!” Engines roared, but the carrier was slow to turn. Kenji gripped the railing, heart hammering. He could already sense death approaching. Below, McGregor gave the order. Fire one, fire two, fire three, fire four. Compressed air hissed.
Four torpedoes shot into the dark. Silent hunters streaking toward their prey. In the torpedo room, men clenched their fists, counting the seconds. 20, 25, 30. The first impact came with a force of thunder. Unreu shuddered as a torpedo slammed into her starboard side. A second struck closer to the engine rooms. Steel groaned.
Flames shot skyward as aviation fuel ignited. A fireball ripped through the ship. Kenji was thrown across the deck, ears ringing, lungs burning with smoke. Around him, men screamed, some a flame, others crushed beneath collapsing beams. Below, McGregor pressed his ear close to the hull. Muffled booms echoed through the submarine.
The crew erupted in cheers, but McGregor raised a hand. Quiet. Wait, she isn’t finished yet. On Unrew. Chaos rained. Compartments flooded. Fire raged through hangers stacked with bombs and drums of fuel. Officers shouted orders lost in the roar of explosions. The deck listed 10° then 15. Sailors clung to rails, faces pale with terror.
At 10:20, a secondary blast ripped through the forward hangar. Men were hurled into the sea. Wreckage rained down. Oil fires spread across the surface. Black smoke rose like a signal of doom. If the flames reached the forward magazines, Unreu wouldn’t have minutes. She’d have seconds. The list worsened. Lifeboats smashed before they could be lowered.
Some sailors leapt into the freezing sea only to be swallowed by fire or dragged into the vortex forming beside the carrier’s hull. Kenji stumbled across the tilted deck, gripping twisted railings. He saw comrades sliding helplessly into the ocean. Their screams were drowned by the roar of fire. His training told him to fight.
His instinct told him the ship was dying. In Redfish, sonar confirmed it. She’s rolling, sir. Breaking up fast. McGregor nodded. Standby. Escorts will be hunting the submarine dove deeper. They had just sunk a giant. The only question was how fast she would die. By 10:27, Unrew was beyond saving. Her bow plunged, her stern lifting as the ship rolled.
For a moment, her massive deck stood nearly vertical. Then she slid beneath the waves. Kenji was hurled into the sea, choking on oil. He surfaced amid wreckage, coughing, eyes stinging. Around him, hundreds struggled, some calling for help. many vanishing beneath the black water. At 10:32, barely 7 minutes after the first strike, the East China Sea closed over Unreu.
More than 12,200 sailors were gone. Only scattered men clung to debris. On Redfish, silence filled the cramped control room. McGregor finally spoke. Take us down. Depth charges coming moments later. Explosions hammered the sub as Japanese destroyers hunted for vengeance. But the crew knew they had carved their place in history.
Naval historians later agreed. Unreu’s fate was sealed before the first torpedo struck. In 1941, carriers were kings of the sea. By 1944, Japan had no pilots, no escorts, no fuel. Unreu looked formidable on paper, but she sailed half empty with weak defenses. America had mastered a new kind of war. Submarines like red fish cut through Japan’s supply lines.
Torpedoes struck without warning. Two hits alone had triggered the chain reaction. Aviation fuel, bombs, flooding. What once took fleets to achieve, a single submarine now did in minutes. For Kenji, survival was agony. The water was freezing, his uniform heavy with oil. Around him, men thrashed and screamed, their voices fading one by one.
He saw comrades pulled under by suction. Others burned alive as flames spread across the sea. 7 minutes earlier, they had stood together on deck. Now the ocean was littered with their bodies. He clung to wreckage, mind blank, but for one thought. Why had he lived when so many had not? Inside Redfish, the crew sat in silence. They had seen a giant vanish beneath the waves. 1,200 lives had ended.

McGregor spoke calmly. We did our duty. Remember that his words carried weight, but they could not erase the image of a burning carrier collapsing into the sea. For a long moment, no one spoke. Victory at sea always carried the silence of those who would never return. By the time the sea grew quiet, the numbers were staggering.
Out of nearly 1,500 men aboard Unrewu, only 145 survived. Most of the rest drowned, burned, or froze. The East China Sea became a graveyard marked only by oil and drifting debris. For Kenji, rescue brought no relief. Hauled aboard an escort destroyer, he sat shivering, eyes blank. He would carry the smell of oil and the sound of screams for the rest of his life.
For Redfish, survival was also uncertain. Depth charges shook the sub, cracking fittings and damaging her stern. But the crew patched leaks and slipped into the deep. When she reached Guam, battered but afloat, Redfish had earned her place in history. The sinking of Unreu was not an isolated tragedy. Barely 4 weeks earlier, Shinano, the largest carrier ever built, was sunk by the submarine archer fish.
Now Unreu was gone too, swallowed in minutes. Within two months, the Imperial Navy had lost two of its last major carriers without ever striking a blow. The once-feared Keo Bhutai, the force that had humbled America at Pearl Harbor, was gone. In 1944, Japan could not replace these losses. Steel was scarce. Fuel was vanishing.
Most of all, trained pilots were gone. Empty decks and hollow hangers became symbols of a dying empire. The Americans, meanwhile, surged forward. Essexclass carriers rolled out of shipyards in endless numbers. Radar directed their planes. Sonar shielded their convoys. Oil from secure supply lines kept them moving.
Japan, strangled by blockade, watched its navy wither. Historians would later call the sinking of Unu the final curtain for Japan’s carrier dream. From December 1941 to December 1944, the ark was complete. 3 years from Pearl Harbor’s triumph to the east, China sees silence. The Empire of Carriers had risen fast and fallen faster. Lieutenant Kenji Sado was among the 145 who survived.
When destroyers pulled him from the freezing water, his body shook uncontrollably. His eyes were empty. He never forgot the sight of comrades slipping beneath oil slick waves. He never forgot the screams that ended in silence. After the war, he lived quietly, haunted by one question. Why did I survive when so many did not? Survival felt less like a gift than a burden.
Commander Louis McGregor returned to Guam with red fish. He and his crew were hailed as heroes. Yet in private, McGregor admitted a sobering truth. “We won that day,” he said. “But victory at sea is always written in the blood of men who never come home. The ocean remembers them, even if history moves on.
” His words echoed what every submariner knew, that triumph and tragedy could not be separated. Together, the stories of Kenji and McGregor reveal the paradox of war. One man clung to life in despair. The other commanded a victory shadowed by death. Both were bound by the same seven minutes that ended a ship, a crew, and a chapter of naval history.
From the fire of Pearl Harbor to the cold waters that claimed Unrue, Japan’s carrier fleet lived and died in just 3 years. Beneath the East China Sea lies twisted steel and over,200 souls. A monument to both ambition and futility. Glory like a ship can vanish beneath the waves in moments. Many of you may still remember Pearl Harbor.
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