NATO allies have been gearing up for submarine hunts. Germany's first new Poseidon just arrived.

Tech Insider : Business, Technology
A P-8A Poseidon plane sits on a tarmac with a cloudy sky in the background.
TK

German Armed Forces/Christoph Cassette

A Russian submarine's 'unusual' behavior has NATO's attention. A top official says it's 'limping home.'

Tech Insider : Business, Travel
A Russian Kilo-class submarine near Belgium in October 2025.
NATO forces tracked a Russian submarine last week as it traveled near Europe.

Belgian Navy

Palmer Luckey's vehicle collection includes a Navy special forces boat, a Black Hawk, and a 1967 Disneyland car

Tech Insider : Business, Technology, Travel
Palmer Luckey speaking at an event.
Palmer Luckey's vehicle collection includes TK and TK.

PATRICK T. FALLON/AFP via Getty Images

I toured the USS Silversides, a World War II submarine that sank 23 enemy vessels and earned 12 battle stars. Take a look inside.

Tech Insider : Business, Travel
The USS Silversides.
The USS Silversides submarine.

Talia Lakritz/Business Insider

Sweden's stealthy submarines are lethal. NATO's newest ally says it brings 'unique capabilities' to strategic waters.

Tech Insider : Business, Environment, Politics
The top of a submarine covered in snow and ice is seen in dark water with a buildings seen through mist behind it
Swedish submarine HMS Halland enters the Stockholm harbor.

HENRIK MONTGOMERY/AFP via Getty Images

I toured the USS Cobia, a World War II submarine that sank 13 ships and received 4 battle stars. Take a look inside.

Tech Insider : Business
The USS Cobia.
The USS Cobia.

Talia Lakritz/Business Insider

Meta is reportedly building a $10 billion underwater cable that will circle the globe

Tech Insider : Business
Undersea ocean cable underwater
Meta plans to build an underwater cable that will circle the globe.

Ullstein Bild/Getty

Russia could give China submarine tech that would cut into US undersea dominance, US admiral says

Tech Insider
The Krasnoyarsk nuclear submarine during a flag-rising ceremony at the Arctic port of Severodvinsk on December 11, 2023.
Russia will likely provide submarine technology to China, US Adm. Samuel Paparo said.

KIRILL IODAS/POOL/AFP via Getty Images

America’s New Nuclear Subs Will Arrive Late, Cost Millions More than Promised

Gizmodo

These Chinese nuclear submarines show it's serious about countering US dominance under the waves

Tech Insider
Chinese navy Type 094A Jin-class submarine
Chinese nuclear-powered submarines have evolved over decades from problem-plagued classes to formidable assets like the Type 094 ballistic missile boat.

MARK SCHIEFELBEIN/AFP via Getty Images

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