Diplomatic tensions between Iran and multiple countries continue to drive expulsions and related actions, centered on accusations of interference, support for proxies like Hezbollah, and security incidents. Lebanon declared Iran's ambassador persona non grata in March 2026 over meddling claims but faces an ongoing standoff as Tehran refuses withdrawal, with the envoy remaining amid local political pressure as of mid-October 2026. The United States has expelled multiple Iranian UN mission personnel in late 2025 and early October 2026 following the General Assembly. Australia acted in 2025 over alleged attacks on Jewish communities, while France summoned Iran's envoy in October 2026 regarding disinformation disputes. European nations including Germany and Italy have signaled potential further measures tied to court rulings and bilateral frictions, with trader focus on which state may next invoke persona non grata status amid these patterns.