Former Russian president Dmitry Medvedev has become embroiled in a tense back-and-forth on social media that prompted U.S. President Donald Trump to announce he had ordered the re-positioning of two U.

Dmitry Medvedev has traveled a long way from his time as Russian president, when he once stood beside then-US President Barack Obama and declared that “the solution of many world problems depends on the joint will of the United States and Russia.

In a tense escalation of rhetoric between the United States and Russia, US President Donald Trump revealed Friday that he had directed two nuclear submarines to deploy near Russian waters. His move comes in response to what he described as “foolish and inflammatory” remarks from Dmitry Medvedev,