Prussian troops upon weak Danish resistance at the Danevirke entrenchment and, after a short engagement near the town of Dannewerk, drove the Danish army into retreat and seized the city of Schleswig. An armistice signed on 2 August 1848 caused the Prussians to evacuate Schleswig-Holstein but did not end the war. Further engagements in the next two years saw fighting in the vicinity of the Danevirke but not directly involving it. Final peace was signed on 8 May 1852. Second Schleswig War The last military use of the Danevirke was during the Second Schleswig War in 1864. Due especially to the above-mentioned emotive nationalist symbolism, public opinion in Denmark and the Danish military had expected the coming battle to take place along the Danevirke. After centuries of abandonment and decay, the Danevirke fortifications were partially restored, strengthened, and equipped with artillery installations in 1850 and 1861. In the Second War of Schleswig, there was some early skirmishing to the south of the Danevirke, but no battle took place at it, as the Danish Commander in Chief, General de Meza, withdrew all soldiers to the trenches at Dybbøl, owing to an unexpected threat of being outflanked, as the Schlei and the wetlands between the Danevirke and Husum had frozen solid in a hard winter and could be crossed easily, and the territory immediately south of the Danevirke had been conquered by the advancing German army. This retreat came as a surprise to the Austro-Prussian army, and almost all of the Danish army succeeded in completing the evacuation. It resulted, however, in the abandonment of important pieces of heavy artillery, and it remains a matter of historical debate why the railway to Flensburg was never properly used for the evacuation. News of the retreat came as a great shock to Danish public opinion which had considered the Danevirke to be impregnable, and General de Meza was promptly relieved of his command. The Danevirke has remained in German possession ever since. In World War II Following the Allied invasion of Normandy during World War II, the Wehrmacht feared that a second Allied invasion might take place through Denmark, and contemplated converting the earthen wall into an anti-tank trench to counter this threat. Had the proposal been implemented, it would have destroyed the structure. Hearing of the plans, Danish archaeologist Søren Telling – aware that all archaeological investigation was under the ultimate jurisdiction of