US security guarantees for Ukraine: A historic agreement looms

US security guarantees for Ukraine: A historic agreement looms

15.12.2025
7 mins read
A US official reveals details of a security agreement with Ukraine that includes strong guarantees similar to NATO's collective defense to deter any future Russian aggression.

A senior US official revealed on Monday the outlines of a strategic security agreement being negotiated between the United States and Ukraine, confirming that it includes “strong security guarantees” aimed at providing long-term protection for Kyiv against Russian aggression. The official, who preferred to remain anonymous, explained that these guarantees are essentially similar to the principle of collective defense enshrined in Article 5 of the North Atlantic Treaty (NATO), representing a significant shift in the nature of US support for Ukraine.

Historical background and context of the agreement

These talks are taking place in a complex historical context. Since gaining independence from the Soviet Union in 1991, Ukraine has sought to secure its sovereignty and territorial integrity. In 1994, Ukraine signed the Budapest Memorandum on Security Guarantees, under which it relinquished its nuclear arsenal in exchange for pledges from Russia, the United States, and the United Kingdom to respect its independence. However, Russia’s annexation of Crimea in 2014 and the full-scale invasion of 2022 demonstrated that these pledges were insufficient to deter aggression. Since then, Ukraine’s demand for concrete and credible security guarantees has become a cornerstone of its foreign policy, particularly given the stalled progress of its full NATO membership.

The importance of the agreement and its expected impact

The proposed agreement is of paramount importance on several levels. Domestically , it will provide Ukraine with a sustainable security framework that strengthens its long-term self-defense capabilities and reassures the Ukrainian people that Western support is not temporary. It will also enable the Ukrainian military to engage in strategic planning and develop its capabilities in accordance with NATO standards, facilitating future integration. Regionally , the agreement sends a strong deterrent message to Moscow that any future aggression against Ukraine will be met with severe consequences and direct, coordinated U.S. military support. It also contributes to the stability of Europe’s eastern flank. Internationally , the agreement underscores the United States’ commitment to upholding the rules-based international order and the sovereignty of states, and sets a new model for security partnerships with non-NATO states facing existential threats.

Progress in negotiations

The US official's remarks coincided with an announcement by Ukraine's chief negotiator, Rustam Umarov, of "real progress" in talks with the US side. Following a closed-door meeting in Berlin, Umarov expressed optimism about reaching an agreement that would bring an end to the war and achieve a just and lasting peace. These developments suggest that Washington and Kyiv are nearing the formalization of a strategic security relationship that will reshape the geopolitical landscape of Eastern Europe for years to come.

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