Escalating military exchanges in the Israel-Iran conflict, including reported Israeli strikes on central and western Iranian targets on June 8, 2026, prompted Iranian authorities to issue NOTAMs closing airspace around Tehran’s Imam Khomeini International Airport and restricting the western Tehran FIR. These measures followed earlier partial western closures in late May amid stalled diplomacy and U.S. strike considerations, reflecting air defense priorities during heightened alert periods. Ongoing missile activity and retaliatory actions sustain focus on whether security-driven full closures will expand before key resolution dates, with de-escalation or additional strikes as primary near-term catalysts for trader sentiment.