“What kind of retaliation could they take they have not already tried?”
One concern is Iran shutting down the Straights of Hormuz and oil supply. If this occurred big spike in prices. The missile battery systems along the coastline might not be as easy to hunt and destroy if they are not turned on.
Iran could try to shut down the strait, but their navy is pathetic compared to ours. We could sink their ships just for a naval practice exercise.