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.

In a warning to Russia, President Donald Trump said Friday he's ordering the repositioning of two U.S. nuclear submarines “based on the highly provocative statements” of the country's former president,

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