On 9 November 1989, the Berlin Wall collapsed. On that day thousands gathered all along the wall that had separated East and West Germany since 1961.

The accession of the German Democratic Republic (GDR) to the Federal Republic of Germany (Federal Republic) completed the reunification process on 3 October 1990. Moreover, with the accession of the former GDR to the Federal Republic, the GDR integrated into the European Economic Community (EEC) of the time via a special procedure. As the GDR's status as a subject of international law ended with its accession to the Federal Republic, a normal EEC Treaty accession procedure was not possible. The European Parliament followed the chain of profound political developments triggered by the fall of the Berlin Wall closely.

Plenary session- 30th anniversary of the fall of the Berlin Wall- Order of business