In light of the events unfolding between the United States of America and the Islamic Republic of Iran, I have been curious as to the prospect of war between the two countries.
From what I have researched, in order for the President of the US to order an act of war against a country, they would need approval from Congress.
For the United States, Article One, Section Eight of the Constitution says "Congress shall have power to ... declare War." However, that passage provides no specific format for what form legislation must have in order to be considered a "declaration of war" nor does the Constitution itself use this term.
However, in the event that Iran declares war on the United States, does the President need to seek approval from Congress in order to order the Military into committing acts of war?