Mate, Iran ain’t that powerful and that would also require them to Invade Mexico as well and they couldn’t even do that if they wanted to, Not to mention they would have to go through several nations that hate their guts to even have a chance of getting to North America, ALSO the US Navy would bomb the shit out of Iran’s pathetic Navy and if the Iranians even managed to get pass that they would have to deal with the Mexicans who would sure as hell not allow the Iranians to enter their country and even if they managed to go through that they would have to deal with Texas, California, Arizona and New Mexico which California or Texas alone would easily wipe the floor with any invasion force, not to mention Article 5 would send in the Entirety of NATO to come fight alongside us as well as our close Middle Eastern allies like Saudi Arabia and Israel and remember, the Israelis doubled their territory in less than a week at one point. I think you have watched too many movies my guy.