Indonesia successfully tests its first locally made unmanned submarine, marking a leap in naval defense technology.

President Donald Trump said two narco-terror suspects survived a U.S. military strike on a drug-carrying submarine, claiming it carried fentanyl and could have killed 25,000 Americans.

By the 2030s, the world’s oceans may become as transparent to sensors as the skies became to radar in the 20th century. With help from AI, multiple transmitters and receivers – mounted on ships, aircraft and USVs – will be able to triangulate the positions of submarines in real time.

Last year, when a PennWest California professor pitched the idea of using an underwater drone to study aquatic life in the Monongahela River, his suggestion was met with laughter. No one is laughing now.

Britain will acquire a fleet of underwater drones for minehunting as part of a £150m upgrade of the Royal Navy amid growing threats from Russia.