Russian President Vladimir Putin did not accept a European-backed proposal for a full, unconditional 30-day ceasefire beginning May 12, 2025. Instead, he proposed restarting direct Russian-Ukrainian negotiations in Istanbul on May 15, creating a diplomatic dispute over whether fighting should stop before or during negotiations.
The ceasefire initiative was announced after Ukrainian President Volodymyr Zelenskyy met British Prime Minister Keir Starmer, French President Emmanuel Macron, German Chancellor Friedrich Merz and Polish Prime Minister Donald Tusk in Kyiv on May 10. The leaders said Russia would face additional pressure if it rejected the proposal, including efforts to tighten sanctions and increase military support for Ukraine.
European leaders call for a 30-day ceasefire
At a joint press conference in Kyiv, Starmer said Ukraine and its partners were calling for Russia to extend its temporary Victory Day pause into a full 30-day ceasefire, with negotiations to follow. According to the official UK government transcript, Starmer said the leaders wanted an unconditional ceasefire and were prepared to increase pressure on Moscow if Russia refused.
The proposal followed Ukraine's earlier acceptance of a U.S.-backed 30-day ceasefire plan. The European leaders argued that a longer pause in hostilities could create conditions for substantive negotiations while reducing immediate risks to civilians and military personnel.
During the Kyiv meeting, the five leaders also spoke with U.S. President Donald Trump. Ukrainian officials said the discussions focused on diplomatic efforts and the ceasefire proposal. The precise measures Washington would take if Russia declined the ceasefire were not fully defined publicly at that stage.
The Kyiv gathering also carried symbolic significance. Macron, Merz, Starmer and Tusk joined Zelenskyy and first lady Olena Zelenska at Kyiv's Independence Square to commemorate Ukrainians killed during the war before continuing their diplomatic meetings.
Putin proposes talks in Istanbul instead
In remarks delivered early on May 11, Putin did not agree to the proposed May 12 ceasefire. He instead offered to resume direct negotiations between Russia and Ukraine in Istanbul on May 15, saying talks could potentially produce further ceasefire arrangements.
Reuters reported that Putin described the proposed Istanbul meeting as negotiations without preconditions and presented them as a possible route toward what Moscow called a lasting settlement. Russia maintained that broader questions underlying the war needed to be addressed as part of negotiations.
The distinction was important: Moscow was proposing negotiations that might lead to a ceasefire, while Ukraine and its European partners were demanding that a full ceasefire begin first and provide the basis for negotiations.
Macron responded that Putin's proposal was a step toward dialogue but insufficient, arguing that an unconditional ceasefire should not depend on negotiations.
Ukraine agrees to pursue talks but keeps ceasefire demand
Zelenskyy subsequently said he was prepared to travel to Türkiye and meet Putin personally. In a May 11 address, he reiterated Ukraine's support for a full and unconditional ceasefire while saying Kyiv was ready for negotiations in any format.
The following day, Zelenskyy said Russian attacks were continuing and that Moscow had not provided the response Kyiv sought to the ceasefire proposal. Türkiye, which had previously mediated between Russia and Ukraine, said it was prepared to host renewed diplomacy.
The dispute over sequencing remained unresolved: Ukraine and its European partners wanted a ceasefire to create the conditions for talks, while Russia wanted negotiations to begin without first accepting the proposed 30-day halt in fighting.
The May 15 meeting did not become a Putin-Zelenskyy summit
Later developments clarified what happened to Putin's proposal. Zelenskyy traveled to Türkiye on May 15 and met Turkish President Recep Tayyip Erdoğan in Ankara, but Putin did not attend. Russia instead sent a delegation led by presidential adviser Vladimir Medinsky.
Ukraine nevertheless sent a delegation headed by Defense Minister Rustem Umerov to meet the Russian representatives in Istanbul. The talks ultimately took place on May 16, becoming the first direct negotiations between Russian and Ukrainian delegations in more than three years.
The meeting did not produce the comprehensive 30-day ceasefire sought by Kyiv and its European partners. According to Reuters, the negotiations lasted less than two hours and ended without a major diplomatic breakthrough, although the direct channel between the two sides had been reopened.
Ukraine continued to argue that an unconditional ceasefire should be the immediate priority. Russia continued to emphasize negotiations aimed at addressing what it describes as the underlying causes of the conflict.
Why the ceasefire dispute mattered
The episode was not simply a disagreement over whether negotiations should occur. Both sides indicated willingness to participate in talks, but they differed fundamentally over the order and terms of the process.
For Ukraine and supporting European governments, an unconditional pause in fighting was intended to test whether Russia was prepared to stop military operations while diplomacy proceeded. Moscow, meanwhile, resisted committing to that proposal before negotiations and argued that the terms of any longer-term ceasefire had to be addressed through talks.
The May 2025 diplomacy therefore reopened direct Russian-Ukrainian negotiations but did not itself establish a general ceasefire or a peace settlement. The questions of how to halt the fighting, what security arrangements would accompany a settlement, and how the parties would address their conflicting territorial and political demands remained unresolved.
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