Nobody knows what the outcome will be of this war with Iran. The US can bomb them as much as it wants, but a ground attack will be about as successful as our attacks on Iraq and Afghanistan, but probably worse for everyone. 

Iran is a country of 90 million with powerful industry and technology. It is a larger maker of cars than Italy or the UK.  Wikipedia: “Iran holds 10% of world oil reserves and 15% for gas.” 

More from Wikipedia: “Iran has over 610,000 active troops and around 350,000 reservists, which is at least over one million military personnel,”

A ground war will be cataclysmic for both sides.

The idiots in the Drumpf regime and the Pentagon that pushed for and allowed this to happen have no plan for the future. Many people will die and the US arms corporations will make a great deal of money off this war.