Progress in Ukraine Peace Talks: Security Guarantees and Territorial Disputes

On December 15, 2025, significant progress was reported in peace talks held in Berlin between Ukrainian President Volodymyr Zelenskyy, U.S. officials, and European leaders. Central to the discussions was the proposal of security guarantees for Ukraine, akin to NATO's Article 5, which states that an attack on one member is considered an attack on all. U.S. President Donald Trump’s envoys, Steve Witkoff and Jared Kushner, participated in the negotiations, which aimed to address the ongoing conflict with Russia that has persisted since 2014.

Ukraine to receive security guarantees similar to NATO's Article 5: US official on details of Berlin talksThe Sydney Morning HeraldThe Straits TimesAssociated PressBreakingNews.ieReutersZelenskyy said ready to reconsider Ukraine’s NATO bid for security guarantees but refuses to cede territory to Russia

The joint statement from ten European leaders and EU Commission President Ursula von der Leyen emphasized that any territorial concessions to Russia would only be considered once robust security guarantees were established. The proposed guarantees would allow Ukraine to maintain a military force of approximately 800,000 personnel and would involve a multinational force supported by the U.S. to assist in Ukraine's defense and regeneration.

ReutersAssociated PressUkraine’s Zelensky signals willingness to drop NATO bid in exchange for security guaranteesUS Officials Say Ukraine Peace Talks Made ‘Real Progress,’ With Security Guarantees at CoreThe GuardianReutersZelenskyy said ready to reconsider Ukraine’s NATO bid for security guarantees but refuses to cede territory to Russia

In a notable shift, Zelenskyy expressed readiness to reconsider Ukraine's NATO membership aspirations in exchange for strong, legally binding security guarantees from Western allies. He stated, “These security guarantees are an opportunity to prevent another wave of Russian aggression. And this is already a compromise on our part.” This change reflects the pressure from the U.S. and some European nations, which have been hesitant to support Ukraine's NATO bid.

Ukraine’s Zelensky signals willingness to drop NATO bid in exchange for security guaranteesAssociated PressZelenskyy said ready to reconsider Ukraine’s NATO bid for security guarantees but refuses to cede territory to RussiaTRT WorldAssociated PressUkraine to receive security guarantees similar to NATO's Article 5: US official on details of Berlin talksPolitico Europe

Despite the progress on security guarantees, territorial issues remain contentious. The U.S. has suggested that Ukraine might need to concede some territory in the eastern Donbas region, a proposal that Zelenskyy firmly rejected, stating, “I do not consider this fair.” The Kremlin has demanded that Ukraine withdraw its forces from parts of Donetsk, which Kyiv has consistently opposed.

Zelenskyy said ready to reconsider Ukraine’s NATO bid for security guarantees but refuses to cede territory to RussiaAssociated PressUkraine’s Zelensky signals willingness to drop NATO bid in exchange for security guaranteesAssociated PressUkraine says ready to accept NATO-style security guaranteesBreakingNews.ie

U.S. officials indicated that about 90% of the peace deal's technical aspects have been resolved, but the remaining territorial questions are still under negotiation. The U.S. has proposed the establishment of a demilitarized economic zone in parts of Donetsk, a suggestion that has not been well received by Ukrainian officials.

Associated Press

German Chancellor Friedrich Merz praised the U.S. offer as “really significant,” highlighting the importance of the proposed security guarantees. Meanwhile, Zelenskyy has emphasized that any agreement must be legally binding and supported by the U.S. Congress to ensure its durability.

Politico Europe

Critics of the negotiations have raised concerns about the potential for Ukraine to be pressured into unfavorable concessions. Zelenskyy’s willingness to drop NATO ambitions has been viewed by some as a significant compromise that could undermine Ukraine's long-term security.

Zelenskyy said ready to reconsider Ukraine’s NATO bid for security guarantees but refuses to cede territory to Russia

Further discussions are anticipated, with U.S. officials indicating that the security guarantees will not be available indefinitely. The next round of talks may involve working groups in the U.S., possibly in Miami, to continue addressing the remaining issues, particularly those related to territorial integrity and the specifics of the proposed security framework.

US Officials Say Ukraine Peace Talks Made ‘Real Progress,’ With Security Guarantees at Core

The Berlin talks represent a critical juncture in the ongoing conflict between Ukraine and Russia, with the potential for a comprehensive peace agreement hinging on the establishment of robust security guarantees and the resolution of territorial disputes. As negotiations continue, the stakes remain high for Ukraine, which seeks to secure its sovereignty while navigating complex geopolitical pressures.

Reuters