Newsweek's map below ... primarily the Baltic Sea, due to increased activity as the war with Ukraine has escalated. There are also growing tensions between the U.K. and Russia, as London has ...

After incidents of vital underwater cables in the Baltic Sea being damaged, is British subsea infrastructure exposed to sabotage?

Moscow also alleged that European intelligence services and Ukraine intend to "assassinate Russian opposition figures abroad" and blame Russia.

As Russia and the US debate Ukraine’s future, countries on the Baltic Sea are ramping up preparations for a military conflict amid fears that Russia is preparing for a future war with NATO.