A new arms race is unfolding on the ocean floor

When we think about the future of warfare, we tend to picture drones in the sky. But there's another battlefield that's drawing growing attention, and that's the ocean floor. More than 1.5 million kilometers of communication cables run beneath the world's oceans, alongside energy pipelines and power cables that all help the global economy running. And much of that is increasingly vulnerable. The 2022 sabotage of the Nord Stream pipelines in the Baltic Sea was a major wake-up call. Now governments and defense companies are racing to protect the seabed as fears of sabotage and hybrid warfare grow. One potential answer that companies are exploring is underwater drones. They could patrol critical areas, inspect cables, pipelines, and flag anything that looks unusual, from suspicious vehicles or damage to possible mines. One example is Euroatlas. That's a company that's developing Gray Shark, which is an underwater drone designed to carry out missions without constant control. The goal is not to replace submarines or warships, but it is to give navies more eyes and ears below the surface. Protecting every mile of the seabed is impossible. Signals travel badly underwater, visibility is low, and these drones remain far less advanced than the aerial systems reshaping the war in Ukraine. So while this is not a silver bullet, companies see a growing opportunity here in this new, largely invisible, frontier.