West Germany alignment and affiliation to Western alliances like NATO and the European Union. The official German reunification ceremony on 3 October 1990 was held at the building, including Chancellor Helmut Kohl, President Richard von Weizsäcker, former Chancellor Willy Brandt and many others. One day later, the parliament of the united Germany would assemble in an act of symbolism in the Reichstag building. However, at that time, the role of Berlin had not yet been decided upon. Only after a fierce debate, considered by many as one of the most memorable sessions of parliament, the concluded on 20 June 1991, with quite
Germany–United Kingdom relations Britain secretly assured Poland of its acceptance of the latter's western boundary. West Germany had been ambiguous about the matter. Britain had long been uneasy with West Germany's insistence on the provisional nature of the boundary. On the other hand, it was kept secret so as not to antagonise Britain's key ally in its quest to enter the European Community. In 1970, West German government under the Chancellor Willy Brandt, the former mayor of West Berlin, signed a treaty with Poland recognizing and guaranteeing the borders of Poland. In 1990, United Kingdom prime minister Margaret Thatcher at first opposed German