To hell with their borders. I'm with Trump. We need to use our firepower and take their oil. It's time to bring Iran to their knees. Then we'll be à ble to dictate terms.
You seem to be unaware that Iran and Russia have a mutual defense treaty. So attacking Iran and taking their oil, just might not be such a good idea, unless you're fan of thermonuclear war.
Whatever the event, it is unlikely in the extreme that even Putin would risk the destruction of Mother Russia for Iran, treaty or not.
No head of state in his right mind would want to engage in a war that would destroy the homeland. As long as there is an exceptionable exit, war can be averted. However, there are some transgressions, a head of state can not just dismiss. One of those is an attack on a member of a mutual defense pack in which each nation agrees that an attack on the other nation(s) will be regarded as an attack on their homeland. To break such an agreement cast doubt on every agreement that country has made. Russia would have to respond. I'm not saying it would be a nuclear response, but both US and Russia would be set on a path to war. The outcome would be determined by the skills of the diplomats of the two nations.