Political map of Europe & the Mediterranean 27 September 1818 (Congress of Aix-la-Chapelle): In November 1815 the French signed the Second Peace of Paris with the Allies (Treaty of Paris (1815)), ceding territory to the Netherlands and Sardinia, agreeing to pay indemnities for the Napoleonic Wars, and accepting a five-year Allied garrison in northeast France. The French paid off their reparations punctually and by 1818 were ready to complete their obligations. In response, the Allies held the Congress of Aix-la-Chapelle (1818), agreeing to end their occupation early and accept France into the Concert of Europe.