On July 9, 2026, Iran's Foreign Ministry delivered a significant warning to European NATO countries that have allowed the use of their military bases and infrastructure for U.S. strikes against Iran, asserting that they 'must accept accountability for their role in an unprovoked aggression.' This warning specifically addresses NATO allies in Europe whose territories facilitated American military operations, including likely installations in Italy, Germany, and the United Kingdom. Iran also criticized NATO Secretary General Mark Rutte, who publicly labeled the strikes as 'absolutely necessary,' calling him a 'subservient supporter' of Trump. This development significantly broadens the potential for conflict beyond the Gulf region, raising concerns about the possibility of direct Iranian retaliation against U.S. partners in Europe.