The Kremlin has tried to calm tensions in a feud between Trump and Medvedev that spiraled into nuclear threats.

In 2017, during his first term as US president, Trump announced that he had sent two nuclear submarines to the Korean peninsula. Soon afterwards, he held a meeting with the North Korean leader, Kim Jong Un. Whether this latest move will lead to a new meeting with Putin is yet to be seen, however.

US President Donald Trump has ordered the deployment of two nuclear submarines in response to his ongoing dispute with former Russian president Dmitry Medvedev. This is being done "just in case these foolish and inflammatory statements are more than just that,