Treaty on the Final Settlement with Respect to Germany significant event ratification
Treaty
The Treaty on the Final Settlement with Respect to Germany was signed in Moscow on 12 September 1990,: 363  and paved the way for German reunification on 3 October 1990. Under the terms of the treaty, the Four Powers renounced all rights they formerly held in Germany, including those regarding the city of Berlin. Upon deposit of the last instrument of ratification, united Germany became fully sovereign on 15 March 1991.Future territorial claims
Another of the treaty's important provisions was Germany's confirmation of the by now internationally recognised border with Poland, and other territorial changes in Germany that had taken place since 1945, preventing any future claims to lost territory east of the Oder–Neisse line (see former eastern territories of Germany). The treaty defined the territory of a 'united Germany' as being the territory of East Germany, West Germany, and Berlin, prohibiting Germany from making any future territorial claims. Germany also agreed to sign a separate treaty with Poland reaffirming the present common border, binding under international law, effectively relinquishing these territories to Poland. This was done on 14 November 1990, with the signing of the German–Polish Border Treaty. Furthermore, the Federal Republic was required by the treaty to amend its Basic Law so as to be constitutionally prohibited from accepting any application for incorporation into Germany from territories outside of East Germany, West Germany, and Berlin.
Although the treaty was signed by West and East Germany as separate sovereign states, it was subsequently ratified by the united Federal Republic of Germany.