A new arms race is unfolding on the ocean floor

Companies and governments are increasingly waking up to the fact that the future of warfare isn't just in the skies , but also on the ocean floor. Nations and corporations alike are devoting attention as well as piles of cash to new technologies designed for underwater use, as concerns grow about the vulnerability of critical infrastructure like connectivity cables and energy pipelines traversing the seabed. It comes amid growing concerns of so-called hybrid warfare , a broad term which can include cyberattacks, energy sabotage, disinformation, and economic pressure, with or without being accompanied by conventional military methods.