Dmitry Kiselyov, a key propagandist for the Russian President, said Britain could be “plunged into the sea” by an underwater nuclear strike.
The deputy chairman of the Kremlin’s defence committee, Aleksey Zhuravlyov, also warned a Russian nuclear attack could wipe out the UK in less than four minutes.
Alongside the US, Britain is viewed as one of the key members of NATO, and any attack towards it could carry significance for President Putin.
However, again Moscow would have to weigh up the risk and reward from attacking a NATO country, and what type of response it would generate.
