What was the object of the Germans in capturing St. Mihiel? The Crown Prince's army was trying to push through the Verdun defences from the Argonne, and at the same time the Bavarians were trying to advance by way of St. Mihiel. Should these movements succeed, Verdun would be completely encircled, and long before this happened, the French army holding the semicircle about the fortress would be obliged to fall back. "The wedge at St. Mihiel was a sort of buckle to which the Germans desired to fit the strap by pushing down from the north-west." Happily General Sarrail had enough, but only just enough, men to prevent the strap and the buckle from meeting. For a day or two, however, he was in grave peril. As time went on the Germans found their position in the Woëvre more and more uncomfortable. They had no railway within fifteen miles of St. Mihiel, and the main road to that place was in the hands of the French. Nevertheless, they hung on to the little town and the bridgehead for months, though the wedge of country which they held was constantly attacked both from the south and from the north. Soon, however, there was a war of entrenchments in this region, just as there was on the Aisne. On 3rd October the Crown Prince made a desperate attempt to break through the French lines round Verdun. He marched his men from Varennes,[142] on the eastern edge of the Argonne, along a forest road to a place called Vienne,[143] on the Aisne, in the hope of capturing his former headquarters of St. Menehould,[144] from which he might strike south-eastwards to St. Mihiel. In order to reach Vienne the Germans brought their guns through a wood lying to the north of the road. Somewhere in the neighbourhood of this wood the French fell upon the Germans, and drove them back in rout to Varennes, which they afterwards captured. Thus they won the road right across the Argonne, and were able to get into touch with the right of their 4th Army. * * * * *