Tensions between the U.S. and Russia have intensified after a fiery exchange between Donald Trump and former Russian President Dmitry Medvedev. Trump gave Russia a 50-day deadline to agree to a Ukraine peace deal or face harsh economic consequences. Medvedev hit back, mocking the threat and referencing Russia’s Cold War-era “Dead Hand” nuclear system—a doomsday device that could retaliate even if Russia’s leadership were wiped out.

In response, Trump repositioned two U.S. nuclear submarines near Russia and warned of "unintended consequences" if Medvedev continued with "foolish" threats. While both sides appear to be posturing, global leaders are urging restraint amid fears of miscalculation and escalation.