Welcome to Submarine Insider, where we explore the extremes of underwater operations. In this video, we break down how ...

The Arctic Circle is rapidly shifting from a remote, ice-covered region into a strategically important arena for global powers. As melting sea ice opens new shipping routes and exposes access to ...

The U.S. Navy has reached a Cold War-era milestone in the Arctic, deploying two Virginia-class submarines beneath the polar ice cap for the 100th time since World War II. Two U.S. Navy fast-attack ...

Four hundred meters inside a hollowed-out mountain behind a double set of blast doors, operators sit in a darkened room at computer stations facing a bank of floor-to-ceiling screens displaying a map ...

Chinese research submarines for the first time traveled thousands of feet beneath the Arctic ice this summer, a technical feat with chilling military and commercial implications for America and its ...

NATO has expanded its footprint in the North Atlantic in recent years, two Western officers said. This is partially in response to an increased presence of Russian submarines coming out of Murmansk.

Anti-submarine warfare drills are underway in the High North as allies step up their presence in the Arctic with maneuvers aimed at securing a strategic gap near Greenland. Arctic Dolphin, involving ...