United States senator Lindsey Graham says Ukraine’s recent demand for nukes and NATO (North Atlantic Treaty Organization) membership is “not reasonably possible.” Graham made the comments to an op-ed by Kiev’s former top military commander, Valery Zaluzhny.

In the opinion piece published in The Telegraph on Saturday [behind a paywall], Zaluzhny, now serving as Ukraine’s ambassador to the United Kingdom, wrote that “effective security guarantees” could include NATO membership, stationing nuclear weapons on Ukrainian territory, or “a large allied military contingent capable of confronting Russia.”

In a post on X the following day, Graham wrote that the arrangements described by Zaluzhny were “far beyond what is possible,” according to a report by RT. “It is imperative at this critical time that any analysis should meet the test of what is reasonably possible. The security guarantees mentioned, including accession into NATO and placing nuclear weapons in Ukraine, will not fly in my view,” Graham added.

I read with great interest former Commander-in-Chief of the Ukrainian Armed Forces Valerii Zaluzhnyi’s opinion piece about the history of the Ukrainian conflict and the way forward.

The summary of the history of Russia’s aggression against Ukraine was spot on and the…

— Lindsey Graham (@LindseyGrahamSC) November 30, 2025

The U.S. has left NATO membership and is sending troops to the war in Ukraine as an option, which has escalated tensions with Russia.

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Ukraine applied to join NATO in 2022, while European countries, including the UK and France, have expressed readiness to deploy a multinational force to Ukraine after a ceasefire is reached with Russia.

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This news comes as Admiral Giuseppe Cavo Dragone, the chair of the NATO Military Committee, told the Financial Times in an interview published on Sunday that member states have been weighing options to respond to what he described as Russia’s “hybrid war.” He added that NATO needs to be more aggressive against Russia, further inflaming tensions.

“We are studying everything … being more aggressive or being proactive instead of reactive is something that we are thinking about,” Dragone said.