Give Up Donbas or Get No Guarantees: The Rupture Between Zelenskyy and Rubio

What Each Side Said

On approximately March 25, 2026, Zelenskyy told Reuters: "The Americans are prepared to finalize these guarantees at a high level once Ukraine is ready to withdraw from Donbas." The quote was reported verbatim by AP News, DW, Fox News, and multiple other outlets citing the Reuters interview. The Ukrainian presidential office declined to comment on the dispute.

Rubio responded directly on Friday, March 27, speaking to reporters on the sidelines of a Group of Seven meeting in France. His exact words, per AP News: "That's a lie. And I saw him say that. And it's unfortunate he would say that because he knows that's not true and that's not what he was told."

Rubio elaborated, providing his account of what the US has communicated to Ukraine: "We've told the Ukrainian side what the Russians are insisting on. We're not advocating for it. We've explained it to them. It's their choice to make. It's not for us to make for them. We've never told them they have to take it or leave it. The role we have played is to try to figure out what both sides want, and see if we can bridge the middle ground."

The dispute reduces to a direct factual contradiction. Zelenskyy says the US conditioned its own security guarantees on Kyiv's withdrawal. Rubio says the US was transmitting Russia's demands, not making demands of its own. One of those accounts is false. No transcript of the relevant discussions has been released publicly.

What Is Donbas, and What Would Giving It Up Mean?

Donbas is a largely industrial region in eastern Ukraine comprising two oblasts: Donetsk and Luhansk. Before Russia's first incursion in 2014, the region accounted for approximately 15.7% of Ukraine's GDP and 14.7% of its population, according to the London-based Centre for Economic and Business Research, as reported by Euronews.

Zelenskyy said in early March that Ukraine would "never leave Donbas and the 200,000 Ukrainians who live there," in an interview with Italian newspaper Corriere della Sera, per Defense News. That position stood as recently as three weeks before he disclosed the US demand publicly.

Russia has occupied the bulk of Donbas since launching its full-scale invasion in February 2022, but has not seized a strip of territory that is among the most heavily fortified parts of the front line, according to AP News. Defense News reported that Putin wants full control of the entire Donbas region, which analysts believe would give Moscow a permanent military launchpad from which to threaten other parts of Ukraine.

Defense News described the demanded concession as "about 10% of its territory, or about 15% of its prewar GDP." These figures align with the Centre for Economic and Business Research data cited above, though the territory figure is an approximation — the exact percentage depends on whether one includes only the Russian-controlled portions or the full oblasts.

Context: Florida Talks, No Progress, Then the Disclosure

US special envoy Steve Witkoff and senior adviser Jared Kushner met with Zelenskyy in Florida last weekend. Zelenskyy said afterward those talks produced "no real progress," per Defense News — a sharper characterization than his earlier claim that US security guarantees were "100% ready."

Rubio confirmed the Florida meetings occurred, and told reporters that as of March 27, no further meetings were scheduled. He said the US was not "advocating" for a Donbas withdrawal but acknowledged the country is actively relaying Russian demands to Kyiv.

The backdrop to all of this is the ongoing US-Israel war against Iran, which began February 28. Zelenskyy told Reuters that with the US focused on the Iran conflict, Trump is looking to bring a quick end to the war in Ukraine. Defense News and the Guardian both reported fears that the Iran war has diverted attention — and material — away from Ukraine.

Rubio confirmed at the G7 meeting that American Patriot air-defense missiles have been moved from Europe toward the Middle East. He stated: "If we need something for America and it's American, we're going to keep it for America first. But as of now, that has not happened" — referring to diverting weapons already assigned to Ukraine. AP News had previously reported those Patriot movements from Europe to the Middle East.

What Ukraine Has Already Conceded

The Ukrainian position has shifted significantly over the course of negotiations. Zelenskyy agreed in principle months ago to allow Russian forces to remain where they currently are at the time of any ceasefire — meaning Ukraine would formally give up territory Russia already controls. The new Donbas demand, as Zelenskyy describes it, would go further: requiring Ukraine to voluntarily withdraw from the portions of Donbas it still holds, including fortified lines it has defended for more than a year.

Retired Lt. Gen. Ben Hodges, the former commander of US Army Europe, told Military Times: "What Ukraine is being asked to do is politically and morally unacceptable." He said the Donbas demand is not a bargaining chip but the core of the deal — a test of whether Washington is prepared to trade Ukrainian territory for what he described as "a paper promise."

Retired US Ambassador Ian Kelly, who served as ambassador to Georgia when Russia occupied 20% of that country, told Military Times: "We gave them the Javelin but then said, 'By the way, don't use them.'" Kelly said the pattern was familiar.

The Weapons Question

Running parallel to the peace talks is a separate dispute over US weapons. Zelenskyy warned publicly that Ukraine will "definitely" face shortages of Patriot air-defense systems because of the Iran war, per AP News. The US-led coalition's demand for interceptor missiles and air-defense assets in the Middle East is pulling from the same production and stockpile base that has been supplying Kyiv.

Politico reported on March 27 that US officials had told allies the Iran war could delay Ukraine weapons shipments. Rubio said at the G7 that nothing had been diverted yet — "Nothing has been diverted" — but explicitly left open the possibility it could happen.

Ukraine's Foreign Minister Andrii Sybiha, who met Rubio on the sidelines of the G7 meeting, posted on X that Ukraine's proposals were "realistic and doable" and that "Pressure on Russia is key to make Moscow end the war." Sybiha also said: "Ukraine's position is that the regimes in Moscow and Tehran work together to prolong the war."

The Broader Stakes: What Analysts Say

Defense News reported that experts view the deal structure as raising a precedent-setting problem beyond Ukraine: if a country that gave up its nuclear arsenal (Ukraine surrendered Soviet-era nuclear weapons in 1994 under the Budapest Memorandum, in exchange for security assurances) can be told to cede land for an undefined guarantee from a guarantor whose credibility is already in question, the lesson other countries may draw is that nuclear weapons are the only reliable security guarantee. Defense News noted this concern explicitly in connection with the ongoing debate inside Iran about whether to pursue a bomb.

Whether those peace talks resume — and on what terms — was unclear as of March 28. Russian officials said talks had been paused, though it was not clear when or whether they would resume, per Defense News. The battlefield has not waited for diplomacy: Russia launched nearly 1,000 drones and missiles in its spring offensive — the largest strike series of the war, per the Institute for the Study of War. Separately, Reuters calculated as of March 25 that at least 40% of Russia's oil export capacity had been halted, due to a combination of Ukrainian drone attacks on oil infrastructure, a disputed pipeline attack, and the seizure of tankers.

What Is Not Confirmed

No transcript of the Witkoff-Kushner-Zelenskyy Florida meetings has been released. The exact wording of any US proposal communicated to Ukraine regarding Donbas is not publicly known. Rubio says the US relayed Russia's demands; Zelenskyy says the US made them its own condition for security guarantees. Neither the Ukrainian presidential office nor the White House has provided documentation resolving this dispute.