Building Our Future

Building Our Future

Share this post

Building Our Future
Building Our Future
The Ocean Floor is the Frontline
Defense- & Dual-Use Technologies Edition

The Ocean Floor is the Frontline

Defense and Dual-Use Technology

Apr 04, 2025
∙ Paid
2

Share this post

Building Our Future
Building Our Future
The Ocean Floor is the Frontline
1
Share

Good morning!

Yesterday, Anduril dropped what might be the most important defense tech innovation of the past year: Seabed Sentry.

Think of it as a surveillance system for the world’s last great stealth domain, the ocean floor. But it’s not just a bunch of sensors bolted to the seafloor. This thing is modular, rapidly deployable, and open-architecture, the holy trinity of next-gen defense systems.

At a time when:

  • Russia is straining to pump out new submarines despite an aging industrial base

  • China's been experimenting with deep-sea devices that could disable underwater cables or power grids (EN)

  • Traditional undersea surveillance systems are becoming vulnerable

  • And nations are waking up to the fact that undersea warfare might decide the next great conflict

Seabed Sentry is a game-changer.

This isn’t just about tracking subs. It’s about owning the seabed, watching everything from missile subs to sabotage drones, and doing it flexibly, without laying a mile of cable or waiting six months for depl…

Keep reading with a 7-day free trial

Subscribe to Building Our Future to keep reading this post and get 7 days of free access to the full post archives.

Already a paid subscriber? Sign in
© 2025 Building our Future
Privacy ∙ Terms ∙ Collection notice
Start writingGet the app
Substack is the home for great culture

Share