Is the enemy defeated, are they still a threat, are they stronger now then they were?
Iraq was defeated, and were weaker than they were. We smashed their best divisions, and captured a shitload of them. I know because I was there.
Last I saw we were still being threatened here at home by those we defeated in battle. War is about survival.
You're redefining words to defend a stupid statement by Trump. We fought the Iraqi Army in 1991, and the Iraqi Army is not threatening us now. And even if it was, all that would mean is that we screwed up the 2003 Iraq War, not that we lost the Gulf War.
You'd be much better off, and be doing Trump a favor, by acknowledging that this wasn't the wisest statement. When you reflexively defend every single thing the guy does, people tune you out, and so your arguments won't convince anyone even when you and he happen to be right.