Of the territorial adjustments desired by Belgium, the least considerable concerned her Prussian frontier. Belgium (or at that time the Belgian part of Holland) and Prussia became neighbors in 1815, in consequence of the Prussian annexations on the left bank of the Rhine. The boundary then drawn was not based upon considerations of language or history, still less upon any expressed desire of the inhabitants, but was fixed primarily so as to give Prussia a certain number of people as compensation for her failure to receive Saxony. She thus acquired the eastern part of the lands of the abbey of Stavelot-Malmedy; the territory of St. Vith, which had belonged to Luxemburg; and a portion of Limburg in the region of Eupen. This land was largely hill and forest, of no great economic value, and it was used by Prussia chiefly for military purposes. Strategic railroads, of little importance in time of peace, were constructed along the Belgian and Luxemburg frontiers, and the great military camp of Elsenborn was built in this very region to serve for the concentration of troops against the invasion of Belgium. Liège, Belgium’s great industrial center, was only eighteen miles from the German border, and the taking of Liège in 1914 opened up the whole valley of the Meuse. Belgium asked a minimum of protection for the future. It was plain that such protection could not come from any considerable advance of the frontier on the part of so small a state, but must be found chiefly in the demilitarization of the Left Bank and in measures for general peace. At least, however, Belgium might ask control over some of the military railroads and over the camp of Elsenborn. If purely strategic arguments had prevailed, they would have carried the Belgian frontier forward to the Rhine or to the mountain range of the Eiffel. Within the narrower limits chosen, the strategic considerations were reënforced by others: the economic orientation of this region toward Belgium rather than toward Germany; the historic connection before 1815; and the opportunity for reparation, for this sparsely peopled territory was rich in forests, which might serve to replace the Belgian forests which had been systematically destroyed by Germany during the war, leaving a frontier line which can be followed for miles by the standing timber on the German side and its absence on the Belgian. The linguistic line was less sharp. German was spoken in certain districts on the Belgian side; while, in spite of a century of Germanization, Walloon still prevailed in Malmedy and the neighboring Prussian villages. Indeed, Malmedy was in many ways like a Belgian town, and German troops in 1914 are said to have begun pillaging here under the impression that they were already in Belgium.