US policy back then is way way way different from what it has become today. US intervention back then was really about defending allies which there were agreement of some kind made before war broke out.
england went to war for poland, its ally. the reason was clear.
not this one. same goes for afghanistan war.
war is such an archaic method to solve conflicts, if it ever succeeds in that at all.
if US is really sincere in ending all these madness & misery, it should think of ways to end the source, which is the thought of opposing US. the best way is to project a better image, which can be kind & considerate, rather than bully that nobody dares to oppose.
u cannot avoid having enemies, but u can avoid the increase in numbers.