Ribit,
I just re-read De's re-framing of your question, and I don't think that is an example of a straw man argument. And, quite notably, he is completely open about changing your question to one he can better answer (in a strawman argument, the substitution is surreptitious - intended to fool the unwary).
And he DOES answer that question. Further, his leaving WWII OUT of the list of wars he decidedly WOULDN'T advocate for, is extremely notable. So, I don't think his move (is that called making it a contra-positive?) is bad debate form. It's actually kind of smart!
So, I think his question for you is fair. Somewhere, you said something about not favoring the Vietnam War. Would you have wanted to participate in all the other wars on his list?