NATO has expanded its footprint in the North Atlantic, partially in response to an increased Russian submarine presence.

ABOARD THE ESPS ALMIRANTE JUAN DE BORBON—If there are Russian submarines “all over the place” near Greenland, as President Trump has said, the crew of this Spanish frigate aims to find them. Deep ...

Add Yahoo as a preferred source to see more of our stories on Google. The stretch of ocean, viewed as a gateway to the Arctic, is where Europe's high north meets the Russian high north, home to the ...

Ukraine has opened a new chapter in naval warfare, claiming to have crippled a high‑value Russian submarine with an explosive underwater drone in the Black Sea. The strike, which Kyiv describes as the ...

“THE HUNT for Red October”, Tom Clancy’s novel of 1984 and later a cult film, depicts the cat-and-mouse game between Russian submarines trying to break out of the Greenland-Iceland-UK (GIUK) gap into ...

Oct. 15 (UPI) --The Swedish military deployed fighter jets and a warship to shadow a Russian submarine after it entered the Baltic Sea on Tuesday and continues sailing toward a Russian port. The ...