Inside Russian nuclear sub as it fires missile that can level a city

A TV crew was on board a Borey-class nuclear submarine as it was test-firing a Bulava nuclear missile on Wednesday. A video from the sub shows people entrusted with one of the world's most powerful weapons in action.

The Yury Dolgoruky fired its deadly cargo from the Barents sea in Russia's north to the Far-Eastern test range of Kura.

Footage from the scene shows tense seamen and officers in blue uniforms going through the launch protocol, using the same language they would use in case of a real nuclear war.

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