ABSTRACT The examination of NATO‘s Article 5 collective defense clause reveals profound structural frailties exacerbated by the protracted Russia–Ukraine conflict, surging European defense expenditures, and divergent transatlantic strategic priorities under renewed United States leadership. This analysis addresses the central question of whether Article 5, invoked only once in NATO‘s history following the September 11, 2001, … Leggi tutto EXCLUSIVE REPORT – NATO’s Article 5 in Peril: Vulnerabilities and Escalatory Pressures Amid the Ukraine War and European Rearmament in 2025