On 11 November, the Compiègne armistice was signed, ending the war. The Treaty of Versailles was signed on 28 June 1919. Germany was to cede Alsace-Lorraine to France. Eupen-Malmédy would temporarily be ceded to Belgium, with a plebiscite to be held to allow the people the choice of the territory either remaining with Belgium or being returned to German control. Following a plebiscite, the territory was allotted to Belgium on 20 September 1920. The future of North Schleswig was to be decided by plebiscite. In the Schleswig Plebiscites, the Danish-speaking population in the north voted for Denmark and the southern, German speaking populace, part voted for Germany. Schleswig was thus partitioned. Holstein remained German without a referendum. Memel was ceded to the Allied and Associated powers, to decide the future of the area. On 9 January 1923, Lithuanian forces invaded the territory. Following negotiations, on 8 May 1924, the League of Nations ratified the annexation on the grounds that Lithuania accepted the Memel Statute, a power-sharing arrangement to protect non-Lithuanians in the territory and its autonomous status. Until 1929, German-Lithuanian co-operation increased and this power sharing arrangement worked. Poland was restored and most of the provinces of Posen and West Prussia, and some areas of Upper Silesia were reincorporated into the reformed country after plebiscites and independence uprisings. All German colonies were to be handed over to League of Nations, who then assigned them as Mandates to Australia, France, Japan, New Zealand, Portugal, and the United Kingdom. The new owners were required to act as a disinterested trustee over the region, promoting the welfare of its inhabitants in a variety of ways until they were able to govern themselves. The left and right banks of the Rhine were to be permanently demilitarised. The industrially important Saarland was to be governed by the League of Nations for 15 years and its coalfields administered by France. At the end of that time a plebiscite was to determine the Saar's future status. To ensure execution of the treaty's terms, Allied troops would occupy the left (German) bank of the Rhine for a period of 5–15 years. The German army was to be limited to 100,000 officers and men; the general staff was to be dissolved; vast quantities of war material were to be handed over and the manufacture of munitions rigidly curtailed. The navy was to be similarly reduced, and no military aircraft were allowed. Germany was also required to pay reparations for all civilian damage caused during the war.