Iran Vows Retaliation After U.S. Launches "Economic Onslaught" of Expanded Sanctions

Iran vowed retaliation on August 25, 2026, after the U.S. Treasury launched Operation Economic Outcast the prior day. Treasury Secretary Bessent called it an "economic onslaught" on Iran's global financial ties. Expanded secondary sanctions threaten third-country firms: choose the U.S. dollar system or commerce with Iran. Prior actions had already frozen $500 million. Iran has not specified its response.