The Patriot surface-to-air missile system has become one of Ukraine's most important platforms during Russia's full-scale invasion, which began in February 2022. Since 2023, Patriots in Ukraine have been used to down drones, ballistic missiles and Russian aircraft.

Trump said the United States would put 100% secondary tariffs on countries that do business with Russia if a deal if a peace deal is not reached in 50 days.

Under the plan, other NATO countries would buy U.S.-made arms, then give them to Ukraine to defend itself against Russia. NATO’s secretary general was set to meet Mr. Trump on Monday.