Ongoing military conflict with Russia and the absence of unanimous NATO member consensus remain the dominant barriers to Ukrainian accession before 2027. Allies reaffirmed support at the July 2026 Ankara summit through equipment pledges and interoperability commitments but reiterated that an invitation requires agreed conditions, including completed reforms and resolution of active hostilities. Recent statements from Ukrainian officials, including former commander Valery Zaluzhnyi in early August 2026, highlighted shortfalls in meeting alliance military standards amid the war. Traders’ strong preference for “No” aligns with these structural hurdles and historical patterns where NATO enlargement has paused during unresolved conflicts. Plausible shifts could stem from a swift negotiated ceasefire enabling rapid accession talks or unexpected allied agreement on wartime entry, though both face substantial diplomatic and procedural obstacles.