Traders assign a 96% implied probability against NATO invoking Article 5 before 2027, driven by the continued absence of direct armed attacks on alliance territory amid the Russia-Ukraine conflict and stable deterrence along NATO's eastern flank. No major military incidents involving member states have occurred in recent weeks, with diplomatic channels and existing force postures containing tensions in the Baltics and Black Sea region. This consensus aligns with historical patterns where collective defense has remained untriggered absent clear aggression. Realistic scenarios that could alter outcomes include a direct incursion on a frontline member such as Poland or the Baltic states, escalation from hybrid operations, or unforeseen involvement by another power, though current risk assessments keep such developments unlikely within the timeframe.