A Russian officer who served in Finland became the head of an enigmatic unit

Danylyuk estimates that Russia is practicing strikes deep, for example on submarine cables and other connections at depths of 1,000–2,500 metres. At that depth, connections are almost unprotected and very difficult to repair. "Such capabilities for deep-sea sabotage are not built for the Baltic Sea," Danylyuk told IS. According to the researcher, the potential targets of Russia's deep-sea diving equipment are mainly transatlantic cables and deep-water energy connections. "In the shallow waters of the Baltic Sea, simple methods such as anchors can be used.