As they plied the gray, icy waters of the Baltic Sea west of Russia on Thursday, the crew of the Estonian minehunter EML Sakala kept a careful eye on any vessels slowing down suspiciously or suddenly changing course.

A large Nato flotilla has gathered off the coast of Estonia, with the goal of securing the critical undersea cables and pipelines that run across the Baltic Sea. This mission comes in response to a series of incidents where important infrastructure was damaged,

"Ruptures of undersea cables that have rattled European security officials in recent months were likely the result of maritime accidents rather than Russian sabotage, according to several U.S. and European intelligence officials,

A NATO flotilla has been assembled off the coast of Estonia as the military alliance strengthens its presence in the region to safeguard critical undersea cables. Following recent accusations of Russian sabotage in the Baltic Sea,