(IFF) your primary MORAL AXIOM is to save the babies, (and honestly, what monster wouldn't) (THEN) you should start by saving all the babies in your own country and then move to saving all the babies in your allied countries.

Because if you only try to save the babies in countries occupied by your enemies, you are in grave danger of appearing to cynically cherry-pick your outrage as a hypocritical pretext to Military Conquest.