The Treaty of Peterhof was a treaty signed in December 5, 1920, ending the state of war between the Allied Forces (composed of the United Kingdom and its Empire, the German Empire, the Russian Empire (which became the Eurasian Union soon afterwards), the Kingdom of Italy, the Kingdom of Belgium and other minor states) and the Drumont-Boulangiste French State. While armistice was declared unilaterally by French troops in October 15, 1920 (and agreed upon by the British and German governments in October 17), it took it until December 5 for the Saint Petersburg Peace Negotiations to result in any deal. A relatively pragmatic result, Peterhof agreed to maintain France relatively unscathed, leading to no major territorial concessions (with the exception of land lost to Italy, signed in the Treaty on Nevsky Prospekt).
Continental France was left unscathed in the Treaty of Peterhof. The Germans and British, despite moderate opposition by the Belgians, agreed to maintain Nord-pas-de-Calais and Lille within France, and no further concessions were given from France, as the German diplomats feared that removing land from France would just lead to the strengthening of rattachisme and revanchisme in the French region, therefore just leading to more problems. France was allowed with stayed with all their borders (although Corsica, Savoy and Nice were lost later on) in the continent, which was to the great contentment of the French people.
In Africa, Algeria was also kept untouched, as was Dakar and the connection between the two nations. However, territorial changes did occur. Gabon was given to the Germans, as well as more of Central Africa and the French share of the Congo River basin. In the Treaty on the Nevsky Prospekt, the French were also forced to give up Tunisia.
While French gains, especially in Africa, were significant, they were not overwhelming, and the French did not complain about territorial loses.
The French were forced to admit the responsibility of the war because of their invasion of Belgium, and offered to give reparations for the Belgian government to rebuild its destroyed infrastructure. However, there were no large-scale reparations demanded at once, given that the French had their own share of industrial destruction (in the northwest of the nation, the coal centre)