“Putin uses Medvedev as a tool to express statements related to nuclear weapons, he doesn’t want to discredit his own good peacekeeper’s name,” Lieutenant-General Ihor Romanenko, former deputy head of the General Staff of the Ukrainian Armed Forces, said ironically.

President Donald Trump has ordered the repositioning of two U.S. nuclear submarines. Friday's decision comes after what he calls "highly provocative statements" by former Russian President Dmitry Medvedev.

The Kremlin tried Monday to defuse tensions caused by remarks from one of Russia’s top officials that led President Trump to shift two nuclear submarines closer to Moscow. “As you know, Russia holds a responsible position.