Actually we joined in on the war between Iran and Israel if anything. He hasn’t started a war.
Peace through strength, heard of it? If you’re stronger than, for example, the majorly terrorist nation like Iran, then they cannot fight back if they refuse peace. Get rid of most of their ballistic missile arsenal, like Israel did, and then stop them from completing nukes, USA did, then if they choose war, like Trump has said, we’re going to continue airstrikes on Iran. Until they choose to give up, or until sadly, they’re all gone. Meaning all the Iranian Regime Extremists.