Navy SEAL-turned-NASA astronaut Jonny Kim is on his first space mission to the ISS. See photos of him at work.
7 min read
US fires commander of Greenland Space Force base following Vance visit
Colonel Susannah Meyers was removed from her position after a "loss of confidence in her ability to lead," Space Operations Command said.
2 min read
Why this Marine general says it's OK to lose your war game
A Marine Corps general says everyone should be war gaming. He also says officers and enlisted shouldn't be afraid to fail.
5 min read
How I convinced my boss to do something risky, bet big, and send me to a war
I spent a week last month reporting on the ground in Ukraine. The trip took months to plan, and I had to convince my boss it was worth it.
7 min read
The Pentagon says it's ending $5.1 billion worth of IT and consulting contracts with firms including Accenture and Deloitte
Defense Secretary Pete Hegseth said the terminations "represent $5.1 billion in wasteful spending" at the DOD.
3 min read
US military planes flew a Patriot air defense battalion out of the Pacific to the Middle East. It took over 70 flights, a commander says.
The head of US Indo-Pacific Command said it took 73 loads with C-17 cargo aircraft to move the air defenses.
3 min read
See what it was like watching elite US special operators fight drones and storm buildings in a Taiwan crisis scenario
Business Insider observed US special operators run through their combat responses during a Chinese invasion of Taiwan training scenario.
5 min read
Ukraine says it's ready to pay up to $50 billion to the US for more air defenses and aid
"If you want it in a fund or if you want us to pay you directly, it doesn't matter to us," Zelenskyy said on Wednesday.
3 min read
Every Marine a rifleman? A US general says for future war, they might need to be something more.
A commanding general said that with new technology like drones, Marines can be lethal beyond 500 meters, out to 15 or 20 kilometers.
4 min read
The US Navy is still grappling with elevator problems on its new Ford-class supercarriers
Continued problems with the advanced weapons elevators could affect the delivery of the Navy's next Ford-class carrier, Navy officials indicated.
3 min read
Ukraine is testing new unjammable ground robots Russia can't stop with its unrelenting electronic warfare
Brave1, a Ukrainian government operation that pushes innovation within the defense industry, said fiber-optic controlled systems are in high demand.
3 min read
The West thought mines and artillery were yesterday's weapons. Ukraine showed they were wrong.
Land mines and artillery shells have proven essential weapons for Ukraine, and NATO is taking note.
4 min read
Ukraine's soldiers make fake bunkers to fool the Russians into bombing the wrong spot, drone operator says
Ukraine's soldiers build fake positions to try and trick Russia's military into attacking the wrong place.
4 min read
China is building the world's biggest military command center. Here's what it looks like.
China is building the world's biggest military command center, and new satellite images show it's progressing fast.
A Brit who fought in Ukraine reveals his war essentials: guns, grenades, and candy
Macer Gifford broke down the most essential kit he used while fighting as an international volunteer in Ukraine.
6 min read
Special operations leader shares his tough experience as the US embassy was shuttered just before Russia invaded Ukraine
Col. Lucas VanAntwerp recalled tossing out sensitive materials and watching the flag come down, marking one of the tougher moments of his career.
4 min read
Russia's Black Sea Fleet is figuring out how to defend against Ukraine's deadly sea drones: 'Now it's not so simple'
"What you did yesterday will no longer work tomorrow," said Vice Adm. Oleksiy Neizhpapa, who commands Ukraine's naval forces.
3 min read
I'm a résumé writer for people transitioning out of the federal workforce. Here are my 4 tips.
Former federal workers can go anywhere with their skills — but they need to know how to explain it in a way that makes sense to civilians.
5 min read
Russia's grinding advance in Ukraine has slowed to a third of its rate from November, Western analyses say
Russia gained some 250 square miles in November, but its gains have steadily decreased every month, Western analysts said.
3 min read
What military assets has Trump deployed to the US southern border? Troops, warships, spy planes, and more.
From spy planes to Navy warships, here are the US military assets that have been deployed to the US-Mexico border amid Trump's immigration crackdown.
6 min read
Inside the 'Kyiv Express,' the loud, bumpy, yet surprisingly cozy overnight train I rode 16 hours to Ukraine
My journey from Poland into Ukraine was long and bumpy and way different from any train I'd taken before in the US and Europe.
6 min read
Russia is flying fewer types of drones over Ukraine, making them easier to target
A Ukrainian drone operator said that with some Russian drone types, "it's very easy to identify them. They rarely make any changes to the design."
4 min read
Countries near Russia are pulling out of a decades-old land mine ban as security concerns grow
A growing number of countries bordering Russia are abandoning a long-standing treaty banning the use of land mines, as fears over future attacks grow.
5 min read
Russia on track to build artillery shell stockpile triple the size of the US's and Europe's combined: top US general
Gen. Chris Cavoli says Russia is rebuilding its forces swiftly, including by producing 10 times as many tanks as the US each year.
3 min read
What is the M88A2 Hercules, the heavy US Army vehicle that sank in a deadly training incident in Lithuania?
The M88A2 Hercules was recovered from a swamp during a recovery operation for four US Army soldiers who went missing during a training exercise.
5 min read
I was happily married for 11 years. Then, my husband joined the military.
Brittany Meng and her husband had a solid marriage, but that changed when he joined the military and Brittany had to let go of her dreams.
5 min read
A Ukrainian drone operator says he texts and FaceTimes manufacturers about his drones. It makes better weapons.
A Ukrainian drone operator said the dialogue he has with drone makers means he can weigh in on the development and get replacement parts in a day.
5 min read
Ray Dalio says tariffs have an important consequence: They can prepare the US for a great conflict or war
Ray Dalio wrote that tariffs are 'necessary' in times of great conflict, which he has often warned is coming for the world as China challenges the US.
3 min read
I teach combat drone pilots to fight Russia. Here's why musicians and tailors make great operators.
Vladyslav Plak is the CEO of Drone Fight Club, and he says only a third of pilot candidates make it all the way to certification for battle.
4 min read
exclusive
Confusion gripped US base defenders as a flying bomb struck a deadly blow at Tower 22, investigation says
An Army investigation obtained by BI describes what went wrong before the deadly drone attack last year at a US military outpost in Jordan.
5 min read
Germany is permanently stationing troops in another country for the first time since World War II
Germany is putting thousands of troops in Lithuania, a NATO member that borders Russia. It's the first long-term deployment abroad since World War II.
4 min read
Swarms of military drones will be part of NATO's arsenal soon if this country gets its way
Sweden's defense minister said his country is "laser-focused" on making swarm drones, and quickly. It's a capability not yet seen in drone warfare.
5 min read
Eerie photos capture BI's journey into the ghost town near Chernobyl. 50,000 people lived here before nuclear disaster struck.
Business Insider recently traveled to Pripyat, a city in northern Ukraine that was evacuated and abandoned after the Chernobyl disaster.
3 min read
Putin's Chechen warlord has put a 17-year-old in charge of his republic's security
Adam Kadyrov, 17, is in charge of Chechnya's internal affairs ministry, which oversees police and local security forces in the Russian region.
3 min read
US aircraft carriers are on the move. More firepower is going to the Middle East.
The Pentagon is sending the USS Carl Vinson to the Middle East and extending the deployment of USS Harry S. Truman, which is already there.
3 min read
How a Canadian chef-turned-drone pilot scored his first air-to-air kill against a deadly Russian Lancet drone
The pilot, call sign "Butcher," took down a Russian Lancet drone with a fixed-wing drone in a kill that was caught on camera.
4 min read
US Marines have a new 'attack drone team' that's taking lessons straight out of the war in Ukraine
The Corps is pairing the new attack drone team with its prestigious shooting team. Rifles are cornerstones for the service. Drones could be too.
4 min read
A US ally is buying dozens of ships to combat threats from Russia and to protect underwater cables
Denmark is boosting its navy amid rising threats from Russia in the Baltic Sea, as well as intensifying rivalries in the Arctic.
3 min read
The good, the bad, and the 'screamers': A Brit who fought for Ukraine reveals how international fighters make their mark
Macer Gifford, who fought in Ukraine for two years, told BI about the inspiring — and sometimes troubled — international volunteers he'd seen there.
5 min read
A Ukrainian unit is hunting down dozens of Russian drones with a flying double-barrel shotgun
The Ukrainian design likely uses a recoilless gun concept, which hails from World War I's Davis gun.
3 min read
The US Navy is taking a 'SpaceX approach' to underwater drones, submarine force commander says
"What we find is we learn a lot more when we get it in the crew's hands," Submarine Forces Commander Vice Adm. Gaucher said.
4 min read
Trump's threat to Iran that 'there will be bombing' comes amid new B-2 stealth bomber moves
Air Force Global Strike Command confirmed that B-2s have deployed to Diego Garcia, a US-UK military base.
4 min read
Former Air Force secretary says he doubts US allies would be willing to buy an export version of the F-47
Frank Kendall, the former Air Force secretary, said he doubted US allies would be lining up to buy F-47s given its costs and concerns over Trump.
3 min read
Here's why the US is picking a fight with Denmark over Greenland — and what Greenland thinks about it
Trump has dreams of Greenland. But the semiautonomous territory of Denmark wants no part of it.
4 min read
History suggests Ukraine needs heavily armed peacekeepers to have a chance of success
Peacekeepers have frequently failed to prevent wars. Ukraine's best chance to keep the peace is mechanized forces with a clear mandate.
5 min read
Bleak images show snapshots of daily life in the closed world of North Korea
Photos show daily life in remote parts of North Korea and its capital, Pyongyang. Slogans and propaganda are common sights on buildings.
3 min read
Pete Hegseth signs memo to shrink Defense Department's workforce in a bid to boost efficiency and 'incentivize top performers'
The DOD will "realign the size" of its civilian workforce and "strategically restructure," the memo said.
2 min read
Beyond his bright blue suits, Pete Hegseth's unconventional style is 'operator casual'
Secretary of Defense Pete Hegseth plays the Washington suit game in his own way, but he's got another kind of unusual look — operator casual.
5 min read
From F-35s to F-47s, Trump is making turbulence for Lockheed
Some allies are rethinking the F-35 as a new contract decision upends Lockheed's longtime dominance in stealth fighter aircraft.
6 min read