The Iraq war was an invasion...Iran will be an air strike which doesn't require a very public build and support system.
You are taking about striking the a country as large and more mountainous than the states of East Coast put together.
In 1959 Eisenhower managed to bring much of the USA air force into the Middle East without arousing much attention. The whole news focus was on the marines splashing ashore in the Labanon. It wiull be harder to move in such secrecy today, but a little misdirection might help.