NATO countries sharing the strategically important Baltic Sea with Russia have boosted their presence there and are beefing up their navies.

Estonian authorities detained and boarded a ship in the Baltic Sea that belongs to Russia’s shadow fleet ... and have even mulled sinking them. Estonia’s parliament approved a new law Wednesday ...

Finland has announced its support for the EU’s new action plan aimed at improving the security and resilience of submarine cables, citing the strategic importance of the Baltic Sea.

They are quiet, small, and can stay down for a long time, ideal for the Baltic Sea. Sweden's defense minister ... and it is now one of many European countries warning Russia could attack elsewhere ...

Estonian Navy Detains Russia-Bound Oil Tanker in Baltic Sea By Andrius Sytas VILNIUS (Reuters) -The Estonian navy detained and boarded a Russia-bound oil tanker on an EU sanctions list on Friday ...