I have to wonder if NOT recognizing a purpose of or need for war -- any war -- is a matter of evolution of the human spirit which a relative few have so far achieved.  

Reduced to its essence, war is a matter of drawing an impassable line then defending/advancing that line with the (considered) valueless fodder of human life.  Rationale for warring actions is limitless and these actions proceed until one side hollers "uncle!" or the parties withdraw -- only to draw another line somewhere else and do it all over again.  It has NEVER made sense to me, and most of my lifetime has been spent under threat and actuality of Cold/hot wars.  

Just as thoroughly and eternally as I don't understand mathematics, I don't "get" war, or the patriotism that promotes and sustains it.  Those concepts are as foreign to me as I'm sure my attitude is to most others.  Maybe when enough others don't "get" it, the entire concept will vanish into history.  There must be a better way; Jesus taught there is.