Russia's race to militarise the Arctic

Russia has built nearly 500 military installations which it says is to protect oil and gas reserves that may become more accessible due to climate change.

One military base called Northern Clover can hold up to 250 military personnel and can be self-sufficient for up to a year.

Sky News' Diana Magnay was invited by the Russian government to visit one to see whether or not the worry by NATO is warranted.

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Видео Russia's race to militarise the Arctic канала Sky News