In a memorandum dated November 27, 1946, the Government of Luxembourg stated that the border be relocated between 5 and 10 kilometers (3.1 and 6.2 mi) into German territory. An area of 544 square kilometers (210 sq mi) was affected, including all or part of the German border districts of Bitburg, Our, Saarburg, and Prüm, the population of which was 31,188 people. The area constituted approximately 20% of the territory that Luxembourg had ceded to Prussia in 1815.