Germany and Poland Sign Border Treaty: Oder-Neisse Confirmed

Germany and Poland signed a treaty in Warsaw confirming the Oder-Neisse line as the permanent border between the two nations, finally settling a territorial question that had poisoned European politics for nearly half a century. The agreement came just six weeks after German reunification and represented one of the last pieces of unfinished business from World War II. The Oder-Neisse line had been imposed by the victorious Allied powers at the Potsdam Conference in 1945. The border shifted Poland roughly 200 kilometers westward, stripping Germany of Silesia, Pomerania, and the southern half of East Prussia. Between 12 and 14 million ethnic Germans were expelled from these territories in one of the largest forced population transfers in history. West Germany, throughout the Cold War, maintained an ambiguous position, recognizing the line as a de facto boundary but refusing to accept it as legally permanent. The question became urgent when the Berlin Wall fell in 1989 and German reunification moved from theoretical to imminent. Poland, having rebuilt entire cities on formerly German territory and settled millions of its own citizens there, watched the reunification process with deep anxiety. Polish leaders feared that a powerful, unified Germany might one day demand territorial revision. The diplomatic resolution came in stages. In the Two Plus Four Agreement of September 1990, which cleared the path for reunification, the unified Germany formally renounced all territorial claims east of the Oder-Neisse line. The November border treaty turned this renunciation into binding international law between the two countries specifically. German Chancellor Helmut Kohl, who had initially been reluctant to make the border commitment, faced intense pressure from both the international community and his own foreign minister, Hans-Dietrich Genscher, who understood that European stability depended on Poland's security.