…. The long gray line has never failed us. Were you to do so, a million ghosts in olive drab, in brown khaki, in blue and gray, would rise from their white crosses, thundering those magic words: Duty, Honor, Country.
This does not mean that you are warmongers. On the contrary, the soldier above all other people prays for peace, for he must suffer and bear the deepest wounds and scars of war. But always in our ears ring the ominous words of Plato, that wisest of all philosophers: “Only the dead have seen the end of war.”
https://nationalcenter.org/ncppr/2001/11/04/general-douglas-macarthurs-farewell-speech-to-west-point-1962/