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NATO Launches 'Baltic Sentry' to Protect Undersea Infrastructure

The mission intensifies surveillance in response to a surge in Baltic Sea cable and pipeline damage, suspected to involve hybrid warfare tactics.

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Swedish Coast Guard vessel KBV033 (R) and vessel Vezhen are anchored outside Karlskrona, Sweden, on January 27, 2025, for examination by Swedish authorities. Swedish authorities on Sunday, January 26, 2025 seized the ship suspected of having sabotaged a fibre-optic cable in the Baltic Sea, the prosecutors' office announced. Prosecutors have opened an investigation for "aggravated sabotage" after the undersea cable running between Sweden and Latvia was damaged, said the statement. (Photo by Johan NILSSON / TT News Agency / AFP) / Sweden OUT (Photo by JOHAN NILSSON/TT News Agency/AFP via Getty Images)
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Overview

  • NATO's new 'Baltic Sentry' mission deploys warships, surveillance aircraft, and naval drones to monitor and deter threats to critical undersea infrastructure in the Baltic Sea.
  • At least 11 cables in the Baltic have been damaged since October 2023, raising concerns about potential sabotage, though investigations suggest many incidents may be accidental.
  • The damaged infrastructure includes power, communication, and gas pipelines vital to the economies and connectivity of Baltic-region nations.
  • Finnish authorities suspect a Russian-linked oil tanker damaged multiple cables in December, but Western intelligence suggests most damage may be due to poorly maintained ships dragging anchors.
  • NATO Secretary-General Mark Rutte emphasized the importance of protecting undersea infrastructure as part of the alliance's broader efforts to counter hybrid threats.