Updated December 29, 2025 at 11:41 AM EST
KYIV, Ukraine — The United States is offering Ukraine security guarantees for a period of 15 years as part of a proposed peace plan, Ukrainian President Volodymyr Zelenskyy said Monday, though he said he would prefer an American commitment of up to 50 years to deter Russia from further attempts to seize its neighbor's land by force.
U.S. President Donald Trump hosted Zelenskyy at his Florida resort on Sunday and insisted that Ukraine and Russia are "closer than ever before" to a peace settlement.
Negotiators are still searching for a breakthrough on key issues, however, including whose forces withdraw from where in Ukraine and the fate of Ukraine's Russian-occupied Zaporizhzhia nuclear power plant, one of the 10 biggest in the world. Trump noted that the monthslong U.S.-led negotiations could still collapse.
"Without security guarantees, realistically, this war will not end," Zelenskyy told reporters in voice messages responding to questions sent via a WhatsApp chat.
Ukraine has been fighting Russia since 2014, when it illegally annexed Crimea and Moscow-backed separatists took up arms in the Donbas, a vital industrial region in eastern Ukraine.
Details of the security guarantees have not become public but Zelenskyy said Monday that they include how a peace deal would be monitored as well as the "presence" of partners. He didn't elaborate, but Russia has said it won't accept the deployment in Ukraine of troops from NATO countries.
As indications suggest negotiations could come to a head in January, before the fourth anniversary of Russia's full-blown invasion of Ukraine on Feb. 24, 2022, Russian President Vladimir Putin on Monday claimed that Russian troops are advancing in the eastern Donetsk region of Ukraine and are also pressing their offensive in the southern Zaporizhzhia region.
Putin has sought to portray himself as negotiating from a position of strength as Ukrainian forces strain to keep back the bigger Russian army.
He also emphasized at a meeting with senior military officers the need to create military buffer zones along the Russian border.
"This is a very important task as it ensures the security of Russia's border regions," he said.
Kremlin spokesman Dmitry Peskov said Monday that Putin and Trump were expected to speak in the near future but there was no indication the Russian leader would speak to Zelenskyy.
French President Emmanuel Macron said Kyiv's allies will meet in Paris in early January to "finalize each country's concrete contributions" to the security guarantees.
Trump said he would consider extending U.S. security guarantees for Ukraine beyond 15 years, according to Zelenskyy. The guarantees would be approved by the U.S. Congress as well as by parliaments in other countries involved in overseeing any settlement, he said.
Zelenskyy said he wants the 20-point peace plan under discussion to be approved by Ukrainians in a national referendum.
However, holding a ballot requires a ceasefire of at least 60 days, and Moscow has shown no willingness for a truce without a full settlement.
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