Ongoing conflict with Russia remains the dominant barrier to Ukraine's NATO accession before 2027, as Allies have avoided extending an invitation that would trigger Article 5 commitments during active hostilities. The July 2026 Ankara Summit produced pledges of €70 billion in military aid and reaffirmed support for an irreversible path to membership once conditions are met, yet stopped short of any timeline or formal process. Recent statements from former Ukrainian commander Valery Zaluzhnyi highlighted shortfalls in meeting alliance military standards, while persistent requirements for unanimous consent, interoperability reforms, and security sector changes further constrain near-term prospects. Trader consensus at 97.4% against reflects these structural and geopolitical realities. A rapid ceasefire followed by accelerated reforms and unified Allied agreement could still shift probabilities before the deadline.