NATO allies continue to manage hybrid threats and the Russia-Ukraine conflict without a qualifying armed attack on member territory that would trigger Article 5 consultations or response. The July 2026 Ankara summit produced a formal reaffirmation of the collective defense commitment by all 32 members, including the United States, alongside pledges of sustained aid to Ukraine. Recent incidents such as airspace violations and drone activity prompted Article 4 consultations and NATO condemnations rather than invocation of mutual defense. U.S. troop posture adjustments in Europe and allied increases in defense spending have introduced uncertainty about Washington’s reliability, yet no NATO member has faced an attack meeting the threshold for Article 5 since the 2001 precedent. These factors underpin trader consensus that invocation remains unlikely through the end of 2026.