Trump has let the genie out of the bottle and can't easily put it back. Iran is now fully aware of how much power they hold over world economics, so much more than they had in the 80's. They have the means of possibly getting sanctions removed from them and their capacity to become a nuclear power is really no different than when they signed the deal with Obama et al in 2015, which Trump ripped up! Regime change is now clearly off the table.
Lebanon, which is a very ethnically diverse population now has a million people displaced by Israeli actions and Netanyahu shows no sign of wanting to stop. Are we looking at another Gaza? It is a bloody mess, literally with 1,000s of completely innocent people killed, injured and homeless. To top it off, people in countries that have nothing to do with this war are badly affected. Thank you Mr Trump, now get the world out of this mess you have dragged us into!!