This bill requires the President to withdraw U.S. Armed Forces from hostilities against Iran within 30 days unless Congress specifically authorizes continued military action. It reaffirms that only Congress has the authority to declare war and clarifies that the withdrawal requirement does not apply to U.S. forces acting in self-defense, protecting allies or embassies, conducting defensive deployments, or performing intelligence activities. The bill does not authorize any new military action; instead, it ensures that any ongoing or expanded operations against Iran must first receive congressional approval.