The bill directs the President to remove US Armed Forces from engaging in hostilities with or against Iran unless authorized by a declaration of war or specific authorization for the use of military force. It emphasizes Congress's sole power to declare war and highlights the President's responsibility to defend the US from attack. The bill also allows for the defense of the US and its personnel, intelligence activities related to threats from Iran, and assistance to partner countries attacked by Iran. The bill aims to limit military actions against Iran without congressional approval and provide for defensive measures if necessary.