The bill emphasizes that only Congress can declare war and that the President has a responsibility to defend the US from attacks. It mentions that Congress has not declared war on Iran and that the President notified Congress about military action against Iran. The bill directs the President to remove US Armed Forces from hostilities in or against Iran unless explicitly authorized by Congress. Exceptions include defending against attacks, intelligence activities, and assisting allies' defense. It also allows assistance for the security and evacuation of US citizens affected by the hostilities.