https://www.vg.no/nyheter/meninger/i/ng2jen/krigen-om-atlanterhavet
This article contains some fairly alarming language. It describes the current activities in the Atlantic Ocean on the part of Russia and NATO as a "war" and a "battle".
The alleged battle is happening because new Russian submarines are making it difficult for NATO to operate in freely in the sea between the USA and Europe. The Americans want to keep Russian submarines out of the area so they can send war ships to Europe without the risk of being sunk.