There will also be no definition of done.
He's given his supporters 10 reasons to use in defending the actions, doesn't give a shit what The Atlantic writes about him, and baits his most beligerent critics into appearing to be in favor of the brutal dictator, theocracy, throwing LGBT off of roofs and beating, raping and suppressing women.
Regardless of the unclear objectives and justifications, the only thing that will matter politically is the result. If Trump can declare victory, he will. If Iran is neutered, and falls off the front page, the American people will return to apathy towards the ME.