The working of the Sevmash shipyard

Half of the world's supply of nuclear weapons is hidden under water, in the missile tubes of nuclear submarines plying 70 percent of the globe.

As complex as spacecraft, just 6 countries possess nuclear submarines: India, China, Britain, France, the U.S. and Russia.

Daniil Ilchenko traveled to Severodvinsk, where he visited a top-secret shipyard and saw with his own eyes Russia’s underwater missile shield being built.

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