Russia on Tuesday firmly rejected U.S. President Donald Trump's 50-day ultimatum to agree to a ceasefire in Ukraine, calling his threat of “severe tariffs” unacceptable.

Deputy Foreign Minister Sergey Ryabkov reiterated Moscow’s preference for a diplomatic resolution to the conflict but warned that military operations would continue if negotiations fail.

“We are open to diplomacy,” Ryabkov said. “However, if our efforts are not reciprocated and our strategic goals remain unmet, the special military operation will proceed.”
He added, “Russia’s position remains firm. We expect Washington and NATO to treat this matter with the seriousness it deserves.”

Trump, meanwhile, denied allegations that he had encouraged Ukraine to carry out strikes deep inside Russian territory, claiming he was not taking sides in the war. “Ukraine should not be targeting Moscow with long-range weapons,” he stated.

Just a day earlier, from the Oval Office, Trump had announced that the U.S. would begin supplying weapons to Ukraine through NATO channels. He also warned of imposing “severe tariffs” on Russia if a ceasefire agreement is not reached within 50 days. He indicated that the first batch of Patriot missile systems could arrive in Ukraine “within days.”

Russia’s Foreign Ministry condemned the planned arms shipments, describing them as further proof that NATO countries “are not genuinely interested in peace.”

U.S. Commerce Secretary Howard Lutnick later clarified that Trump’s mention of “100 percent secondary tariffs” referred to sweeping economic sanctions targeting entities doing business with Russia.

In a related development, Ukraine’s parliament on Tuesday voted to extend the country’s wartime status and military mobilization for another 90 days, through November 5. Lawmakers also approved a temporary suspension of Ukraine’s commitment to the Ottawa Convention — an international treaty banning the use of anti-personnel landmines.