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tinct from those of the Ardennes, would have no tactical significance in the battle of the Ardennes, they were to be of very considerable logistic, or what the Germans style "operational," importance. The northernmost, the Ahr, follows an oblique course northeast until it enters the Rhine at Sinzig. From the Schnee Eifel comes the Kyll, bending southward to meet the Moselle not far from Trier. Paralleling the Kyll in the west is the Prum River. It is the last stream of any importance before the German frontier is reached. Like the Kyll its sources are in the heights of the Schnee Eifel. The beautiful Moselle attracts numerous small tributaries rushing down from the Eifel, but only the Moselle itself deserves attention. Alternating between scenes of towering rocks and meadow passages, the German Moselle winds and turns capriciously from its entrance on German soil, past Trier and a host of little villages whose names are known to all lovers of the vine, until finally it rushes past the "German Corner" at Koblenz and into the Rhine. Just as the Moselle vineyards of renown alternate from one bank to the other, so the railroad line and the highway crisscross the river throughout its middle reaches; but rail and road come to a focal point only a few kilometers from the Luxembourg frontier at the old Roman city of Trier.

Throughout this whole area military routes of movement, regardless of the weather, are synonymous with the road system. The roads of the Ardennes proliferate in accordance with the geological compartments incised in the high plateau by rivers and streams as they recede downward. The main roads tend to follow a north-south axis, although one, from Luxembourg to Namur, cuts across the grain of the main mass in a southeast-northwest direction. In the northeast the chief road centers are Monschau, Malmedy, and St. Vith. The southeastern nodal points are Ettelbruck, Mersch, and, of course, Luxembourg. To the northwest Bastogne, Marche, and Rochefort are the paramount links in the road system. Arlon, Neufchateau, and Libramont, in the southwest, complete this picture. The Eifel is rimmed by a main road system which hugs the west bank of the Rhine between Bonn and Koblenz then follows the Moselle River until it breaks away cross-country via Wittlich to reach Trier. The circuit is completed by a road which goes north from Trier through Bitburg, Prum, and Euskirchen, finally bifurcating to reach the Rhine at Bonn and at Cologne. Inside of this circuit the chief communications centers are Mayen, Daun, Kochem, and, attached to the outer ring, Wittlich.

The character of the Eifel-Ardennes terrain dictates three major bases of operations for an attack from the German frontier. In the north the Aachen sector is one such base. The direction of attack here would be through the Low Ardennes via Eupen, Verviers, Marche, and Rochefort to the Meuse at Givet. The next base, to the south, lies between Monschau and the Losheim Gap. The westward thrust from this base must go over and between Malmedy and St. Vith. The broadest base of operations is in the south between Prum and Trier. In this case the attack must be made against the grain of the Ardennes mass except for a penetration from Trier to the French frontier at Virton or Longwy which may bypass the more rugged country to the north by movement through the Good