US President Donald Trump has delivered a stern ultimatum to Moscow: stop the war in Ukraine within 50 days or face sweeping 100 percent tariffs, as well as penalties on countries that continue to trade with Russia, BBC reported.

Speaking at the White House with NATO Secretary-General Mark Rutte, Trump confirmed a significant arms deal in which billions of dollars in US military equipment, including Patriot missile systems, will be supplied to NATO and quickly delivered to Ukraine. Rutte described it as a "big step," noting that numerous European governments have already committed funding.

Though Trump began his second term aiming for a quick peace with Russian President Putin, he now appears frustrated by Russia’s escalating aggression. “We’re very, very unhappy,” he told reporters.

Trump’s envoy Keith Kellogg met with Ukrainian President Zelensky in Ukraine, who welcomed the renewed support and discussed strengthening Ukraine’s air defense, according to BBC.

Meanwhile, Russian forces seized more territory in eastern Ukraine as drone and missile strikes pushed civilian casualties to a three-year high. In response, Zelensky proposed naming Yulia Svyrydenko as prime minister, calling it a “crucial time” for Ukraine.