  This sort of skepticism might also be called “prima facie pacifism”: this is the idea that war is usually wrong except in certain extraordinary circumstances when it is compellingly shown that the evil of war is a sort of lesser evil that is necessary for some greater good. Prima facie pacifism presumes that war is wrong but allows for exceptions. Prima facie pacifism places the burden of proof upon the proponent of war: it is up to the proponent of war to prove, in a given circumstance, that war is in fact morally necessary.  