sentences:  The Treaty of Zgorzelec of 1950 between East Germany and the People's Republic of Poland confirmed this border as final.West Germany, which saw itself as the only legal successor to the German Reich and did not recognize East Germany, insisted that final settlement on the Polish–German border could only be accepted by a future reunited Germany.Although West Germany, for all practical purposes, accepted the Oder–Neisse border in the Treaty of Warsaw (1970), its legal caveat that only a future peace treaty would formally settle the issue remained in effect.