submarine

Taking part in joint Nato efforts, the navy said HMS Iron Duke monitored the surfaced Russian Kilo-class submarine and its support tug as they passed through the Channel and into the North Sea.

In April, scientists unveiled quantum magnetic sensor technology that targets the stealth advantage of American submarines.

Note: Ranges shown are calculated from Russia’s borders; actual reach may differ if missiles are launched from submarines.

The Pentagon is reviewing a defense pact with the U.K. and Australia, throwing into doubt a strategic partnership that aims to give Australia nuclear-powered submarines and deter Chinese aggression in the Indo-Pacific.

Similarly, in the Pacific, interdiction by submarines and aerial mining of trade routes effectively depleted Japan’s fuel reserves by the war’s end.