Trump launches sweeping economic operation against Iran after Hormuz talks lapse

President Donald Trump announced a crushing economic operation against Iran on August 19, 2026, characterizing the policy as economic warfare following the lapse of the 60-day Strait of Hormuz memorandum of understanding. The administration warned third-party nations of severe financial penalties if they facilitate Iranian oil trade or provide financial aid to Tehran while maintaining a naval blockade over the strait.

Why this matters. Secondary sanctions force international energy buyers and financial intermediaries to immediately sever payment channels with Iran or risk expulsion from the U.S. banking system.