US President Donald Trump said he had ordered two nuclear submarines to be positioned in what he called appropriate regions after comments by former Russian president Dmitry Medvedev, raising the temperature of an increasingly personal dispute tied to the war in Ukraine.
Trump announced the move on Truth Social, describing Medvedev’s statements as highly provocative and saying precautions were necessary in case the rhetoric led to unintended consequences. He gave no locations for the submarines, consistent with the secrecy that surrounds US naval deployments.
The president also did not specify whether he meant nuclear-powered submarines or vessels carrying nuclear weapons. The distinction remained unresolved in the available reporting, making it impossible to determine the military character or operational significance of the order from Trump’s statement alone. Both the United States and Russia possess large nuclear arsenals and fleets of nuclear submarines.
Speaking to reporters later that day, Trump said he considered Medvedev’s words a threat and framed the deployment as a measure intended to protect Americans. The Kremlin had not publicly responded to the submarine announcement at the time covered by the report, although Moscow’s stock market fell sharply after Trump’s comments.
The confrontation developed as Trump pressed Russian President Vladimir Putin to bring the Ukraine war to an end. Trump had set an 8 August deadline, after first indicating a shorter window of “10 or 12” days. Earlier in July, he had threatened severe tariffs aimed at Russian oil and other exports if the war was not ended within 50 days.
Medvedev, who served as Russia’s president from 2008 to 2012 and is now deputy chairman of the Russian Security Council, accused Trump of playing an ultimatum game. In a social-media post, he argued that each new ultimatum represented another step toward war. He later invoked a “dead hand” threat, wording that some military analysts interpreted as a reference to Russia’s system for controlling retaliatory nuclear strikes.
Trump had responded by calling Medvedev a failed former president and warning him to be careful with his language. Medvedev, an outspoken supporter of Russia’s full-scale invasion of Ukraine, had also dismissed the US deadline as theatrical and said Russia did not care about it.
The announced submarine movement therefore combined strategic ambiguity with political signalling. The public record supplied no confirmation of where the vessels were sent, what type they were or whether their posture changed materially. What was clear was Trump’s decision to link an undisclosed naval deployment directly to hostile rhetoric from a senior Russian official during a period of pressure over Ukraine.
