Ukraine hopes a new push for ceasefire talks with Russia could halt the five-year war before a potentially brutal winter, but needs new anti-ballistic missiles now to defend against strikes by Moscow, the country's envoy to Washington said on Thursday.

Olha Stefanishyna told reporters that Ukraine was in discussions with the Pentagon about a license to produce Patriot PAC-3 missiles itself, but that process could take 12 months to five years. Discussions were also underway about Ukraine agreeing to a long-term purchase of PAC-3 missiles, and then swapping positions in the production line with another buyer.

Officials from Patriot maker Raytheon Co had already been to Ukraine, and Lockheed Martin Corp, which builds the PAC-3 interceptors for the air defense system, was working to send a team of experts to the country as well, Stefanishyna told an event hosted by the Christian Science Monitor.

"The devastating effect of every overnight attack right now is unbelievable," Stefanishyna said. "Last night and the night before, it was 30 to 40 ballistic missiles."

While Ukraine was able to defend against Iranian- and Russian-built drones, it had not yet developed an effective way to defend against ballistic missiles, whose production is being rapidly increased by Russian President Vladimir Putin.

Russian President Vladimir Putin attends a meeting with Human Rights Commissioner Tatyana Moskalkova at the Kremlin in Moscow, Russia May 12, 2026.
Russian President Vladimir Putin attends a meeting with Human Rights Commissioner Tatyana Moskalkova at the Kremlin in Moscow, Russia May 12, 2026. (credit: SPUTNIK/MIKHAIL METZEL/POOL VIA REUTERS)

"He has an intention to destroy Ukraine, and that's why, you know, we're looking for different capabilities. We have been successful in everything, but so far, for this winter, we need the missiles."

Zelensky meets Trump in new diplomatic effort to end war

Ukrainian President Volodymyr Zelensky met US President Donald Trump at the White House on Tuesday to push for new air defenses against the escalating Russian attacks, and to jumpstart a new diplomatic effort to end the war.

That could include a potential visit by US negotiators Steve Witkoff and Jared Kushner to Kyiv, Stefanishyna said. No date had been set for Kushner and Witkoff's visit, but it could happen as early as next week or later, she said.

Zelensky repeated his offer to halt the fighting at the existing battle lines, and use that as a starting point for discussions, Stefanishyna said, while stressing the need to take action before the approaching winter.

Stefanishyna confirmed Ukrainian media reports that she had offered to resign from her post just a year after taking over as Ukraine's ambassador to the US, saying she would return to Ukraine to defend herself against corruption allegations involving some personal property declarations.

She said Zelensky had not asked for her resignation and did not want her to leave her post, but she felt it best for her and her family to "defend my case" in person.

Trump unsure about allowing Ukraine to build Patriot missiles

Trump said he was "not sure" he would let Ukraine build Patriot missiles, The Financial Times reported on Thursday, citing a phone call with him.

Trump also said his envoys Kushner and Witkoff would visit Ukraine for the first time in the coming days, the FT said.

"It's a very extraordinary weapon, and we have to be a little bit careful of who we license to," the president said in his comments to FT.