Ongoing hostilities with Russia remain the dominant barrier to Ukraine’s NATO accession before 2027, as allies have repeatedly conditioned any invitation on resolved territorial disputes, full interoperability, and unanimous consensus under Article 10. The July 2026 Ankara summit delivered substantial aid commitments without extending an invitation or setting a near-term timeline, while U.S. policy has prioritized bilateral security guarantees amid peace discussions that have explored limits on alliance expansion. Recent statements from Ukrainian officials and analysts underscore the absence of realistic conditions for membership by late 2026. Trader consensus at 96.6% for “No” aligns with these structural and diplomatic hurdles, though a rapid ceasefire coupled with accelerated reforms could theoretically reopen the pathway within the window.