The 1st's goal on the 5th was that wooded hill and the wooded slopes of the Montrefagne, which had resisted the efforts of yesterday. During the night Summerall had appeared among his men, a dynamic, restless figure, insisting that there must be no failure on the morrow. With all the divisional artillery at play in a mobile pattern of fire, at once smashing the enemy machine-gun nests and advancing the shields where needed, the infantry in systematic charges continued making progress until the Montrefagne was theirs. When darkness came, they joined up with the left in line with Fléville. The wedge was this much broadened, its position accordingly stronger. As the 28th had still been unable to make much headway, the wedge could not be driven farther until the base was spread, without exposing a longer flank to the fire from the western wall of the Aire valley, and on the right from the sector of the 32nd, whose elements were in poor _liaison_ that night with those of the 1st. So the men of the 1st, become cave-dwellers on the heights in their industrious digging, had one side of the Aire trough as far as Fléville,--and that was the intrinsic value of the wedge. The next step was to be the spreading of the wedge across the valley of the Aire itself, by thrusting in another fresh division between the 1st and the 28th at the base of the bluffs to assault the Forest escarpments. This movement would support the 1st, and would in turn be supported by the 1st's further advance. XVI MASTERING THE AIRE TROUGH West of the river--The 82nd Division called for--A difficult alignment--The outpost hills taken on the 7th of October--And the 28th cleans up the escarpments on its front--The all-American character of the 82nd--The enemy defends desperately the remaining escarpments--Repeated charges up the bluffs--Which are cleared by the 10th. Hovering in reserve since September 26th, the 82nd Division, National Army, was now to have its turn to be "expended" in the battle. During its period of waiting it had two battalions severely shelled on the way to assist the 35th Division in an attack which was countermanded; and of course its engineers had been kept employed on the roads. No engineers in sight were ever out of work, from the beginning to the end of the battle. Previously the division, which had stayed but a brief time on the British front, had served during the summer months on the Toul front, where it had advanced on the extreme right flank of the Saint-Mihiel operation. Originally formed in the South, the 82nd had been called the "All-American" division because it had been filled with draft men from all parts of the country, though its training-camp associations remained Southern, and most of its officers were Southerners. Now it was chosen for the thrust in the valley of the Aire to spread the wedge which the 1st had driven.