John Eisenhower graduated from West Point 82 years ago today. His father was unable to attend due to a prior engagement. pic.twitter.com/YUO866pZuy

— Eddy Elfenbein (@EddyElfenbein) June 6, 2026

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On June 8, 1943, one of the most powerful warships ever built was destroyed in 15 minutes. No American planes. No submarines. No enemy in sight.

IJN Mutsu was one of the "Big Seven" treaty battleships, the most powerful class of warship allowed to exist under the Washington Naval Treaty. 41,000 tons of steel, 16-inch guns, a floating fortress that had sailed through Midway and Guadalcanal without a scratch.

She was anchored at Hashirajima, Japan's most secure fleet anchorage. A place so safe it was considered a parking lot, not a battlefield. 113 young naval flight cadets were aboard that afternoon for a routine familiarization tour. They were teenagers, essentially on a field trip.

At 12:13 PM, the magazine beneath turret No. 3 detonated.

The blast was so violent it cut the ship clean in two. The forward section, nearly 500 feet of warship, capsized to starboard and vanished beneath the water almost instantly. The stern section rose out of the sea at a grotesque angle and floated there, upright and burning, for hours, before finally sinking at 2 AM the next morning, as if refusing to accept what had happened.

Of the 1,474 men and boys aboard, 353 survived.

Of the 113 cadets, only 13 made it out alive.

The Japanese Navy's investigation concluded it was sabotage. A single gunner's mate from turret No. 3, facing a court martial for petty theft, had apparently decided to start a small fire inside the magazine as a diversion so he could escape the ship before his trial. He had disabled the temperature sensors beforehand. He miscalculated. The fire hit the propellant charges. The charges hit the magazine. The magazine killed 1,121 people.

His body was reportedly found in the wreckage.

Japan's response was not grief. It was silence.

The entire event was classified as a state secret. The bodies of the dead were quietly collected and cremated in mass burnings with no ceremony and no public acknowledgment. The ship's captain, Teruhiko Miyoshi, was found dead on June 17. His wife was not informed of his death until January 1944, seven months later.

Families of the dead received no explanation. No official word. Some were simply told their sons and husbands had "died in service." The loss of a Nagato-class battleship, one of only two ever built, was erased from official memory while the war continued around it.

To this day, not everyone buys the sabotage story. Some historians believe the investigation was designed to blame a dead man and protect the navy's reputation, covering up catastrophic negligence in ammunition storage procedures instead.

The wreck was discovered after the war. Partially salvaged in the 1970s. The guns are on display in Japan.

One man's court martial for stealing. 1,121 dead. A battleship erased from history.

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On June 8, 1943, one of the most powerful warships ever built was destroyed in 15 minutes. No American planes. No submarines. No enemy in sight.

IJN Mutsu was one of the "Big Seven" treaty battleships, the most powerful class of warship allowed to exist under the Washington… pic.twitter.com/HZITWJHys8

— Hidden History (@HiddenHistoryYT) June 8, 2026

A gun is still on display in the Yamato museum in Hiroshima.

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On this day in 1944, USS Harder completed one of the most audacious submarine patrols in the history of naval warfare.

Here's what Commander Sam Dealey actually did.

He took Harder to within 6 miles of the main Japanese fleet anchorage at Tawi Tawi in the Philippines. Not 60 miles. Not 16. Six. Close enough to see the fleet. Then he started killing destroyers.

June 6: Minazuki, sunk. June 7: Hayanami, sunk. June 9: Tanikaze, sunk. Two more damaged or sunk in ensuing days.
Five destroyers in a single patrol. Each attack was close-range. Each one put Harder inside the kill radius of the explosion.
But the real damage wasn't just the ships.

Dealey's attacks were so relentless and so precise that Japanese Admiral Toyoda became convinced the entire area surrounding Tawi Tawi was crawling with American submarines. It wasn't. It was mostly just Harder.

Spooked by what he believed was a massive wolfpack, Admiral Ozawa pulled the Mobile Fleet out of Tawi Tawi a full day ahead of schedule. The premature departure wrecked Japanese battle timing and coordination. Days later, they sailed into the Battle of the Philippine Sea, totally disorganized.

The Japanese lost three carriers and over 600 aircraft in what Americans called "The Great Marianas Turkey Shoot."

One submarine, one commander, changed the course of the entire Pacific campaign.

Dealey received the Medal of Honor.

On August 24, 1944, just over two months after this patrol, USS Harder was attacked by Japanese depth charges in Dasol Bay. She went down with all hands. No survivors. The crew was never recovered.

Sam Dealey's Medal of Honor was awarded posthumously.

There are men who changed history without anyone ever knowing their name. Sam Dealey is one of them.

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On this day in 1944, USS Harder completed one of the most audacious submarine patrols in the history of naval warfare.

Here's what Commander Sam Dealey actually did.

He took Harder to within 6 miles of the main Japanese fleet anchorage at Tawi Tawi in the Philippines. Not 60… pic.twitter.com/rRgxuuRzcZ

— Hidden History (@HiddenHistoryYT) June 10, 2026

Never heard of this one.

The Committee of Five—John Adams, Benjamin Franklin, Thomas Jefferson, Robert Livingston, and Roger Sherman—was appointed to draft the Declaration of Independence 250 years ago today.

Jefferson's draft of the document is here at the Library, and will be featured in a new… pic.twitter.com/Ja1jHvqgkT

— Library of Congress (@librarycongress) June 11, 2026

On June 11, 1979, the world lost John Wayne. More than a legendary actor, Duke became an enduring symbol of courage, patriotism, and determination whose influence continues to resonate with audiences around the world.

Through his iconic films and unforgettable characters, John Wayne left a lasting mark on American cinema and popular culture. Decades later, his life and values continue to inspire new generations of fans.

His legacy lives on through the John Wayne: An American Experience Museum in the Fort Worth Stockyards, where visitors can explore the life and career of Duke, as well as through the work of the John Wayne Cancer Foundation, dedicated to the fight against cancer in his honor. Today, we remember John Wayne and celebrate the impact he continues to have around the world.

June 12, 1981 - nothing earth-shattering, but a movie tagged as "A new movie from the makers of Jaws and Star Wars" was released - Raiders of the Lost Ark. I saw it at a theater in Sugar Land, Texas that evening with my family, a theater that no longer exists and was located across the street from the Imperial Sugar Factory. I was a massive Star Wars fan, I loved Jaws, and I had enjoyed Harrison Ford in the movies I'd seen him in by that point (Star Wars, The Empire Strikes Back, Force 10 From Navarone, and a brief appearance in Apocalypse Now), but I was dubious. Like Star Wars, this new movie looked like it might be goofy. But right from the opening, the movie grabbed me, and I was hooked on this new character. I ended up seeing the movie maybe 5 more times that summer, and it remains among my favorite movies.

Yesterday, but still…

If you have seen Band of Brothers, you remember the scene. Winters standing alone in the middle of a road, fully exposed to German machine gun fire, screaming at his pinned-down men to move.

That happened on this day, June 12, 1944. And the real story around it is even bigger… pic.twitter.com/MqmMsGPc4E

— Voices of WW2 (@VoicesofWW2) June 12, 2026