President Trump confirms nuclear submarines are positioned in region as special envoy Steve Witkoff prepares to visit Russia ahead of ceasefire deadline.

Heightened tensions with Russia stem from President Trump's ultimatum to Moscow: make peace with Ukraine or brace for sanctions and secondary tariffs.

President Donald Trump told reporters in Pennsylvania that two nuclear submarines are in the region to counter Russia ahead of special envoy Steve Witkoff's visit and the upcoming ceasefire deadline.