See inside a secret Navy museum on an active base where visitors require an official escort at all times

Tech Insider : Business
The National Museum of the United States Navy.
The National Museum of the United States Navy.

Talia Lakritz/Business Insider

Russia's attack drones are flying higher and faster. A Ukrainian air defender says old machine guns aren't enough to kill them anymore.

Tech Insider : Business, Travel
Ukrainian servicemen of the mobile anti-aircraft fire group of the 112th Territorial Defense Brigade prepare anti-UAV machine guns on November 24, 2024 in Kyiv Oblast, Ukraine.
Ukrainian mobile air defense units use truck-mounted machine guns to shoot down Russian drones.

Photo by Yevhenii Vasyliev/Global Images Ukraine via Getty Images

North Korea detains 3 officials following botched warship launch, state media says

Tech Insider : Business
Satellite imagery shows a North Korean warship partially covered with blue tarps after a failed launch.
Satellite imagery showed a North Korean warship partially covered with blue tarps after a failed launch.

Maxar / Contributor | Getty Images

See inside the E-4B 'Nightwatch,' nicknamed the 'doomsday plane' for its ability to help US presidents survive nuclear war

Tech Insider : Business, Technology, Travel
An E-4B plane.
The E-4B "Nightwatch" is also known as the "doomsday plane."

Justin Oakes/US Air Force

A US Navy captain tells BI his heart was racing when his warship came under Houthi fire for the first time

Tech Insider : Business, Environment
201218-N-TL932-1069 U.S. 7TH FLEET AREA OF RESPONSIBILITY (Dec. 18, 2021) An MH-60S Sea Hawk, assigned to

Ukraine is using helium-filled balloons to extend the range of its attack drones

Tech Insider : Business, Technology
Aerobavovna develops tethered aerostat systems equipped with specialized equipment.
Aerobavovna develops aerostat systems with specialized equipment.

Aerobavovna

See the MV-75 tiltrotor set to be the US Army's next premier air assault vehicle and replace the UH-60 Black Hawk

Tech Insider : Business, Technology
The Bell V-280 Valor participated in flight tests in Amarillo, Texas.
The Bell V-280 Valor was selected as the Army's future long-range assault aircraft in 2022.

Photo courtesy of Bell

Satellite images show the catastrophic damage to North Korea's new destroyer that's lying on its side

Tech Insider : Business
A satellite image showing North Korea's new warship partially submerged in water at a port and covered in blue tarps.
Blue tarps attempt to cover up the damage to North Korea's new destroyer.

Satellite image ©2025 Maxar Technologies

How I survived 14 days in the grueling Army Mountain School

Tech Insider : Business, Style

Business Insider's chief video correspondent Graham Flanagan and senior producer Jake Gabbard take you behind the scenes of the latest "Boot Camp" story: covering the US Army Mountain Warfare School in the rugged mountains of Vermont.

I sent a letter to a deployed soldier to thank him for his service. We are now celebrating our 29th wedding anniversary.

Tech Insider : Business
soldier reading letter among war
The author (not pictured) sent a letter with cookies to a soldier she had never met before.

Virojt Changyencham/Getty Images

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