NATO's Position on Ukraine
From NATO.inc website

The security of Ukraine is of great importance to NATO and its member states. The Alliance fully supports Ukraine’s inherent right to self-defence, and its right to choose its own security arrangements. Ukraine’s future is in NATO. Relations between NATO and Ukraine date back to the early 1990s and have since developed into one of the most substantial of NATO’s partnerships. Since 2014, in the wake of Russia’s illegal annexation of Crimea, cooperation has been intensified in critical areas. Since Russia’s full-scale invasion in 2022, NATO and Allies have provided unprecedented levels of support.
Evolution of NATO-Ukraine relations
Dialogue and cooperation started when newly independent Ukraine joined the North Atlantic Cooperation Council (1991) and the Partnership for Peace programme (1994).
Relations were strengthened with the signing of the 1997 Charter on a Distinctive Partnership, and further enhanced in 2009 with the Declaration to Complement the Charter, which reaffirmed the decision by NATO Leaders at the 2008 Bucharest Summit that Ukraine will become a member of NATO.
The 1997 Charter established the NATO-Ukraine Commission as the main body responsible for developing the NATO-Ukraine relationship and for directing cooperative activities. In 2023, the Commission was replaced by the NATO-Ukraine Council, where Allies and Ukraine sit as equals. This change demonstrates the strengthening of political ties and Ukraine’s increasing integration with NATO.
Cooperation has deepened over time and is mutually beneficial. Ukraine has a long track record of active contributions to NATO-led operations and missions.
Political and practical support to Ukraine
NATO condemns Russia's war of aggression against Ukraine in the strongest possible terms. This aggression gravely undermines Euro-Atlantic and global security, and is a blatant violation of international law. NATO Allies, in concert with relevant resolutions of the UN General Assembly, demand that Russia stop the war immediately, cease its use of force against Ukraine, and completely and unconditionally withdraw all its forces from Ukraine.
The Allies do not and will never recognise Russia's illegal and illegitimate annexations, including of Crimea. Since Russia's illegal annexation of Crimea and the beginning of its aggression in eastern Ukraine in 2014, NATO has reinforced its support for capability development and capacity-building in Ukraine, alongside Allied training of tens of thousands of Ukrainian troops.
Since the NATO Summit in Warsaw in July 2016, NATO's practical support for Ukraine is set out in the Comprehensive Assistance Package (CAP) for Ukraine. At the 2022 Madrid Summit, Allies strengthened the CAP to provide even more support to Ukraine. At the 2023 Vilnius Summit, Allies agreed to further develop the CAP into a multi-year programme of assistance, to help rebuild the Ukrainian security and defence sector and transition Ukraine towards full interoperability with NATO.
At the 2024 Washington Summit, Allies agreed to establish NATO Security Assistance and Training for Ukraine (NSATU) to coordinate the provision of military equipment and training for Ukraine by Allies and partners. They also announced a Pledge of Long-Term Security Assistance for Ukraine, providing a minimum baseline funding of EUR 40 billion within the next year, and sustainable levels of security assistance in the future. In 2024, Allies provided EUR 50 billion to Ukraine, with nearly 60% coming from European Allies and Canada.
NATO stands in unwavering solidarity with the government and people of Ukraine in the heroic defence of their nation, their land and our shared values. The Alliance fully supports Ukraine’s inherent right to self-defence as enshrined in Article 51 of the United Nations Charter.
Ukraine’s membership aspirations
In response to Ukraine’s aspirations for NATO membership, Allies agreed at the 2008 Bucharest Summit that Ukraine will become a member of NATO. They also agreed that Ukraine’s next step on its way to membership was the Membership Action Plan (MAP), NATO’s programme of political, economic, defence, resource, security and legal reforms for aspirant countries. In 2009, the Annual National Programme was introduced as Ukraine’s key instrument to advance its Euro-Atlantic integration and related reforms.
From 2010 to 2014, Ukraine pursued a non-alignment policy, which it terminated in response to Russia’s aggression. In June 2017, the Ukrainian Parliament adopted legislation reinstating membership in NATO as a strategic foreign and security policy objective. In 2019, a corresponding amendment to Ukraine's Constitution entered into force.
In September 2020, President Volodymyr Zelenskyy approved Ukraine's new National Security Strategy, which provides for the development of the distinctive partnership with NATO with the aim of membership in NATO. In September 2022, following Russia’s illegal attempted annexations of Ukrainian territory, Ukraine reiterated its request for NATO membership.
At the 2024 Washington Summit, building on decisions taken at the 2022 Madrid Summit and 2023 Vilnius Summit, Allies reaffirmed that Ukraine’s future is in NATO and that they will continue to support it on its irreversible path to full Euro-Atlantic integration, including NATO membership. To that end, Allies will continue to support Ukraine’s progress on interoperability, as well as additional democratic and security sector reforms, which NATO Foreign Ministers will continue to assess through the adapted Annual National Programme. In Washington, Allied Leaders reaffirmed that they will be in a position to extend an invitation to Ukraine to join the Alliance when Allies agree and conditions are met.
Wider cooperation
Since 2014, in the wake of Russia's illegal annexation of Crimea, NATO-Ukraine cooperation has been intensified in critical areas. Since Russia's full-scale invasion of Ukraine starting in February 2022, NATO and Allies have provided unprecedented levels of support to Ukraine.
But NATO's support to Ukraine and activities in partnership with the country did not begin in 2014 or 2022 – practical cooperation between NATO and Ukraine has been ongoing since the 1990s. Over the years, Ukraine's cooperation with NATO has been mutually beneficial and has covered a wide range of activities – from building Ukraine's capabilities and interoperability with NATO forces, to promoting reforms in Ukraine's defence and related security sector, to supporting non-military activities like collaborative scientific research and public diplomacy.
NATO's cooperation with Ukraine has been implemented through the following programmes and initiatives:
the NATO Building Integrity (BI) process and the annual BI tailored programme,
the Operational Capabilities Concept Evaluation and Feedback Programme,
many other initiatives organised through the advisory mission of the NATO Representation in Kyiv.
Ukraine has also provided support for NATO-led operations and missions, enhancing the interoperability of Ukrainian troops with NATO armed forces.
You can read the entire NATO document HERE.