Should Christians Deny Existence of 'Just Wars?'

Every war is a defeat for humanity, because men and women endowed with reason should be able to resolve their differences without mass violence. Reason, however, can be corrupted by ignorance, passion, ideology, pride, and innumerable other vices. And the distortion of reason can make the slaughter of others, including innocents, seem not only permissible, but even imperative. Thus within his own warped frame of reference, Vladimir Putin's barbaric assault on Ukraine makes sense -- to him.