Huge 36ft ‘Blue Whale’ stealth submarine drones to patrol Baltic Sea for Nato to stop Putin & China cutting key cables A GIANT 36ft stealth submarine drone dubbed the "Blue Whale" has been deployed in the Baltic Sea to prevent any looming sabotage attacks.
The autonomous Blue Whale's goal is to carry out deep sea surveillance in the Baltic Sea.
Suspicions have been raised over potential deep sea disruption from Vladimir Putin's Russia and Xi Jinping's China after a string of key underwater cables have been sliced in recent months.
The German military first carried out test launches of the Blue Whale back in December, according to the Maritime Executive magazine.
The huge drone is set to patrol across European waters on behalf of Nato after being released by the Germany navy.
