“there is a third possible way to satisfy the need for Ukrainian success and Russian failure, over which Putin would have no veto.
In this scenario, the United States would give the Ukrainian military whatever it needs to advance as far as possible in its counteroffensive. At an appropriate point next year, Ukraine would declare a pause in offensive military operations and shift its primary focus to defending and rebuilding liberated areas while integrating with Western institutions. Then, at its July, 2024 summit in Washington, NATO would invite Ukraine to join the Western alliance, guaranteeing the security of all territory controlled by the Ukrainian government at that point under Article 5 of the NATO treaty.”
https://www.politico.com/news/magazine/2023/08/18/how-to-end-ukraine-war-00111752