Those are powerful words. Something to think about.
I do think that the general American idea of 'going in and teaching them a lesson' at most = the Gulf War, which doesn't seem much like a real war anyway (I'm not making light of the many that died there, just pointing out that to the Americans, the cost and losses were light - it was not a long and drawn out affair). And most Americans think we can just drop some bombs and do the job. I really don't think many realize what it would really take to 'do the job'. And even after that 'job' was done, what mess would remain behind.
There are no easy answers.