Time and time again President Trump has been shown to be hesitant to start new wars. and time and time again people panic when He makes the slightest move.
His stance, from the very beginning in 2014 has been no dumb wars, but if there has to be a battle its got to be overwhelming and decisive.
He decreased US involvement in Syria, didn't bomb Iran after they shot down a single drone (despite the NeoCons and media pressuring him too), made strides towards peace with North Korea and tried to mediate with Russia and started to withdraw from Afghanistan which Biden fucked up.
But when He had to he had no hesitation on ordering isolated and overwhelming military force on those who needed it. he launched hundreds of TLAMs against Assad's chemical weapons facilities destroying them. He bombed Qasem Soleimani for orchestrating riots around the US embassy in Iraq. He used the MOAB against the Taliban in Afghanistan. He destroyed ISIS.
these strikes neutralized targets and above all sent the message that while the US might not be in the nation building game anymore it would still bomb the fuck out of people if required.
So I'm not afraid of a repeat of the occupation of Iraq. Trump has been shown to like the use of the Air Force for intimidation and obliteration. So if anything it would be a repeat of the "Shock and Awe" Air campaign against Saddam in 2003. Trump likes to make deals. It's been his whole life. He wanted to make a deal with Russia. He made deals with the Israelis and Saudis. with the north koreans. He'd love to make a deal with Iran. So he's giving them a chance to give up their nukes.