The Most Wasted Battleship in History

Added: 2026-05-15

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[00:00:09]340 m below the East China Sea, something enormous is sleeping.

[00:00:15]She weighs more than the Titanic. Her guns could throw a Volkswagenized shell 26 m. Her armor was thicker than the length of your arm. And on one afternoon in April 1945, she was sent on a mission that everyone, her crew, her admirals, her entire nation knew she would never come back from.

[00:00:35]This is the story of the Yamato, the largest, heaviest, most powerful battleship ever built by any nation on Earth. A ship so secret that most of the world didn't know she existed until she was already gone.

[00:00:49]To understand why Japan built the Yamato, you have to understand the math problem they were facing.

[00:00:57]It's the mid 1930s. The world's great naval powers have been locked in an arms race for decades, building bigger and bigger battleships to outgun each other.

[00:01:07]Treaties were signed to slow things down. The Washington Naval Treaty, the London Naval Treaty, capping how large a warship could be. But Japan was done playing by the rules.

[00:01:19]In 1936, they walked away from the treaties entirely, and their naval planners sat down with a terrifying calculation in front of them. If war broke out with America, the United States could outproduce Japan roughly 10 to one.

[00:01:34]American shipyards could pump out warships faster than Japan could ever hope to match. In a long war, Japan would be drowned in steel. So, the Japanese Navy asked a different question. What if we don't try to build more ships? What if we build better ships? What if we build something so overwhelmingly powerful that one ship can do the work of five? That question gave birth to the Yamato.

[00:02:00]The design specs were staggering. Over 860 ft long, nearly 73,000 tons at full load, more than double the weight of a standard American battleship.

[00:02:13]Nine main guns, each firing shells that weighed 3,220 lb, heavier than a small car over 26 mi.

[00:02:24]Her turrets alone each weighed more than an entire destroyer.

[00:02:28]And here's the part that really gets me.

[00:02:31]The whole thing was built in total secrecy.

[00:02:35]At the Cure Naval Arsenal, workers deepened the dry dock by a full meter.

[00:02:41]They strung up massive rope canopies to hide the hull from the air. They rerouted roads. They planted trees on hillsides to block the view from nearby neighborhoods.

[00:02:52]Workers were told they were building something else entirely. The true specifications were classified at the highest level of Japanese military secrecy.

[00:03:02]On August 8th, 1940, this colossus slid into the water for the first time. And on December 16th, 1941, 9 days after Pearl Harbor changed the world, the Yamato was officially commissioned into the Imperial Japanese Navy.

[00:03:19]The most powerful warship on the planet was ready for war.

[00:03:23]There was just one problem. The war she was built to fight was already over before it started.

[00:03:29]Here's the cruel irony at the heart of the Yamato story.

[00:03:33]She was designed for one thing, a decisive ship against ship battle where her massive guns would annihilate anything the Americans put in front of her. Japanese admirals had dreamed about this moment for decades. A modern Tsushima, the great fleet engagement that would break American will and win the war in a single afternoon. That battle never came because on December 7th, 1941, Japan's own attack on Pearl Harbor proved exactly what would make the Yamato obsolete.

[00:04:04]Carrier launched aircraft sank or crippled eight American battleships without a single Japanese surface ship firing a shot.

[00:04:13]The message was written in smoke and burning oil across the Hawaiian sky. The age of the battleship was ending. The future belonged to aircraft carriers.

[00:04:22]But Japan had just spent years and a fortune they couldn't afford building the most extreme battleship in history.

[00:04:30]So what do you do with a weapon that's too expensive to lose and too outdated to use? You park it.

[00:04:37]For most of 1942, the Yamato sat at anchor as the flagship of the combined fleet.

[00:04:44]Admiral Yamamoto himself directed the Battle of Midway from her bridge, but the ship was hundreds of miles behind the actual fighting.

[00:04:54]She was a troop during Guadal Canal while destroyers and cruisers fought desperate nighttime battles in the Solomons.

[00:05:01]She burned through fuel oil Japan desperately needed just sitting in a lagoon.

[00:05:07]Her own crew started calling her Hotel Yamato because compared to the cramped, battered ships that were actually fighting, she was practically a luxury resort. Spacious quarters, good food, and absolutely no combat.

[00:05:22]Month after month, the most powerful warship on the planet watched the war slip away from Japan through her own port holes.

[00:05:32]October 1944, the Americans have invaded the Philippines and Japan is running out of time. The Imperial Navy launches a sprawling complex operation to destroy the American landing force at Lady Gulf.

[00:05:45]It would become the largest naval battle in human history. And finally, finally, the Yamato would get her chance.

[00:05:54]She was part of Admiral Karita's center force, a powerful surface fleet that included the Yamato, her sister ship, Mousashi, and a swarm of cruisers and destroyers.

[00:06:06]Their mission, punch through the San Bernardino Strait and fall on the vulnerable American transport ships like a hammer. But things went wrong almost immediately.

[00:06:17]On the way in, American submarines and carrier planes hammered the Japanese fleet. Mousashi, Yamato's sister, absorbed hit after hit after hit. 19 torpedoes, 17 bombs.

[00:06:30]She fought for hours, but on October 24th, 1944, the most powerful warship Japan had ever built besides the Yamato herself rolled over and sank, taking over a thousand men with her.

[00:06:44]Yamato pressed on. The next morning, October 25th, Karita's force emerged from the strait and stumbled into something nobody expected. Not a powerful American battle fleet, but a tiny group of escort carriers, destroyers, and destroyer escorts, a unit called Taffy 3.

[00:07:03]What happened next is one of the most extraordinary engagements in naval history.

[00:07:08]The Yamato finally fired her 18.1 in guns at enemy ships for the first and only time. But the American escorts, ships that had no business fighting a battleship, charged straight at the Japanese fleet. Destroyers launched suicidal torpedo runs. Pilots flew through walls of anti-aircraft fire.

[00:07:29]The escort carrier Gambier Bay went down fighting. The destroyers Johnston and Hull were torn apart but kept firing until they sank. And in the chaos and smoke, Admiral Karita blinked.

[00:07:41]Convinced he was facing a much larger force, he ordered his fleet to withdraw.

[00:07:47]The Yamato, the most powerful surface combatant on the planet, turned around and left.

[00:07:53]It was the only time she ever fired her main guns at an enemy ship, and it ended in retreat.

[00:08:02]April 1945, Japan is dying. American B29s are burning cities to ash every night. Ioima has fallen and now a quarter million American troops are storming the beaches of Okinawa, the last stepping stone before the Japanese home islands themselves.

[00:08:20]The Imperial Navy is a ghost of what it was. Most of its carriers are gone. Most of its experienced pilots are gone. Fuel reserves are nearly empty, but the Yamato is still afloat. and someone in the high command decides she has one last mission to perform. They call it operation teno, operation heaven.

[00:08:41]The plan is almost too grim to believe.

[00:08:44]Yamada will sorty with a light cruiser and eight destroyers. She will carry only enough fuel for a one-way trip to Okinawa. When she arrives, she will beat herself on the shore, becoming a stationary fortress. Her crew will fire every shell she has at the American fleet. And when the ammunition runs out, the surviving sailors will go ashore and fight to the death alongside the army garrison.

[00:09:06]It's not a battle plan. It's a funeral with guns.

[00:09:11]Vice Admiral Itto, the man chosen to lead the force, opposes it. He knows it's suicide. He argues against it, but he's told the order comes from the emperor himself. He stops arguing.

[00:09:27]On the afternoon of April 6th, 1945, the Yamato leaves Tokuyama for the last time. Many of her crew are teenagers, boys pulled from training schools to fill out the roster. They know where they're going. Some of them have already mailed their belongings home.

[00:09:45]The Americans know she's coming.

[00:09:47]Submarines spotted the force leaving the inland sea. Code breakers have read the Japanese orders.

[00:09:54]Vice Admiral Mark Mitcher, commanding Task Force 58, doesn't even hesitate. He launches everything he has. Nearly 400 aircraft rise from the decks of 11 carriers, hell divers, Avengers, Corsair's, a steel sky descending on a single target.

[00:10:13]At 12:32 p.m. on April 7th, 1945, the first planes find the Yamato southwest of Kiushu.

[00:10:22]What follows is two hours of concentrated destruction unlike anything the ocean has ever seen.

[00:10:29]The American pilots have a plan. They concentrate their torpedoes on Yamato's port side, the left, to force a progressive list. One torpedo hits, then another, then another. The ship begins to lean.

[00:10:44]Damage control teams flood compartments on the starboard side to compensate, but they're fighting physics. Her 162 anti-aircraft guns fill the sky with fire. Tracers arc in every direction.

[00:10:57]Planes are hit. 10 will be shot down total, but there are too many attackers.

[00:11:02]They come in waves, and each wave drives more steel into the Yamato's hull.

[00:11:08]Six bombs crash through her deck. 11, maybe 13 torpedoes slam into her side.

[00:11:14]Her steering is destroyed. Fire control is gone. Whole sections of the ship are flooded, dark, unreachable. Hundreds of men are already dead at their stations.

[00:11:23]At 2:02 p.m., the order is given to abandoned ship, but it's too late for most of the crew.

[00:11:30]At 2:05 p.m., listing almost completely on her side, the Yamato's forward magazines detonate.

[00:11:38]The explosion is beyond imagination. A column of fire and smoke erupts 6 km into the sky. a mushroom cloud visible from the shores of Kyushu 200 km away.

[00:11:50]The blast is so powerful it knocks attacking aircraft out of their flight paths. And then silence. The largest battleship ever built is gone. Swallowed by the East China Sea in less than 2 hours from the first torpedo hit.

[00:12:07]Of her 2,767 crew members, 269 survive.

[00:12:13]24,498 men die, most of them in an instant.

[00:12:20]Vice Admiral Ido goes down with the ship. So does her captain, Rear Admiral Arriga.

[00:12:26]Neither one is ever seen again.

[00:12:30]For decades, nobody knew exactly where she was. The sea kept her.

[00:12:35]In 1984, an expedition finally confirmed the wreck site 180 mi southwest of Kagoshima, resting in over a thousand feet of water. The magazine explosion had broken her in two. Her main gun turrets, each one nearly 2,800 tons, had fallen free when the ship capsized and now sits separately on the seabed like monuments no one was meant to see.

[00:12:59]In 2016, a digital survey captured her in detail for the first time.

[00:13:05]The crosanthemum crest on her bow, one of her massive propellers, the shattered outline of the most ambitious warship ever conceived.

[00:13:16]In Japan, the word Yamato doesn't just mean a battleship. It's one of the oldest names for Japan itself. And her story, a story of overwhelming ambition, quiet futility, and a final sacrificial voyage that everyone knew was hopeless, has become something more than military history. It's become a mirror.

[00:13:37]She's been reborn in anime as a starship saving humanity. She's been mourned in films. She's been debated by historians for 80 years. And she still sits there in the dark and the cold 340 m down. The largest warship ever built, carrying 2,000 stories that never got to be told.

[00:14:02]Thank you to my Patreon members who helped make this video possible.