Over there on that American front which had penetrated the supposedly impregnable Argonne and now commanded the enemy’s main line of communications at Sedan, boys in our own khaki wriggled, charged, fought, plunged ahead all the morning, like the players of some mighty football team gaining every inch of advance possible before an intermission; and finally, as the whistles shrilled and the great silence fell at last upon a theatre that had shaken and roared with the thunder of war for more than four years, they set their heels into the turf of a line that was to be held as a starting-off place if the armistice, too, should prove to be only an intermission and a period of recuperation. Behind these outpost men were the American Expeditionary Forces, two million strong. Behind the A. E. F. in America was a training and maintenance army nearly as numerous. Behind the uniformed and organized Army as it existed on the eleventh day of November was another force of a quarter of a million men, technically under arms. These were Selective Service men, drafted men, entraining that day and adding themselves to the human flood sweeping on toward Germany. In number this force alone was larger than any ever previously enrolled at one time in the American military service, except the forces called to the colors during the Civil War; yet so expanded had become our values that they attracted only passing attention in the midst of larger war activities. These inductives were one more increment--that was all. And behind the Army itself were twenty-five million American men between the ages of eighteen and forty-five, registered, classified, and numbered in the order in which they too in turn should join the current that led, if necessary, to the supreme sacrifice. The foundation on which rested this human edifice was industrial. Nothing less than the whole of America’s material resources had been pledged to the end of victory. The whole of America’s resources! How inadequately could pigmy man realize their might before he took them all and formed and molded them into one single-purpose machine! That machine was born in travail that broke men’s bodies and reputations, that threw down the mighty from their seats and exalted those of low degree, that moved inexorably but surely. And when the machine was built it released forces terrifying even to men accustomed to administering the greatest of human activities, forces well-nigh ungovernable.