At the present day, civilized opinion is a curious mental mixture. The military instincts and ideals are as strong as ever, but they are confronted by reflective criticisms which sorely curb their ancient freedom. Innumerable writers are showing up the bestial side of military service. Pure loot and mastery seem no longer morally allowable motives, and pretexts must be found for attributing them solely to the enemy. England and we, our army and navy authorities repeat without ceasing, are solely for “peace.” Germany and Japan it is who are bent on loot and glory. “Peace” in military mouths today is a synonym for “war expected.” The word has become a pure provocative, and no government wishing peace sincerely should allow it ever to be printed in a newspaper. Every up-to-date dictionary should say that “peace” and “war” mean the same thing, now in posse, now in actu. It may even reasonably be said that the intensely sharp preparation for war by the nations is the real war, permanent, unceasing; and that the battles are only a sort of public verification of the mastery gained during the “peace”-interval.
“The Moral Equivalent of War” (1910) in The Moral Equivalent of War and Other Essays