Unseen, largely unknown and, until recently, highly classified, the US Navy’s vast network of underwater sonars is one of its greatest advantages over rival fleets. The United States can detect many, if not most, enemy submarines through much of the world’s oceans. A sub that can be detected can also be killed. It’s a profound problem for the Chinese navy as it eyes a possible amphibious assault across the Taiwan Strait. Its growing fleet of quiet attack submarines could protect the landing force—but only if they themselves can avoid detection. The problem for the US is that the Chinese fully appreciate how vulnerable they are underwater—and they’re actively thinking about ways to end that vulnerability. The US fleet needs new and better ways of defending its underwater sensors during a seabed battle that could get very nasty, very quickly in the months and weeks leading up to a possible Chinese move against Taiwan.
Undersea sensors—a US trump card China knows it must eliminate | The Strategist
