NATO allies continue to manage Russian hybrid activities—including repeated airspace violations by drones, suspected sabotage of infrastructure, and cyber incidents—through enhanced vigilance operations such as Eastern Sentry and expanded multinational battlegroups along the eastern flank, without any crossing into the armed-attack threshold required for Article 5. European members have accelerated defense investments and procurement following the 2025 and 2026 summits, assuming greater conventional responsibility while the United States signals a more selective posture, yet leaders have deliberately deferred formal debate on cumulative hybrid thresholds to avoid escalation risks. Official statements from the Ankara summit reaffirmed the collective-defense commitment, but the absence of conventional military strikes on member territory since the sole historical invocation after 9/11 underpins trader consensus that invocation remains unlikely before the end of 2026.