History of Germany (1945–90) on 13 February 1990. The six foreign ministers met four times in the ensuing months in Bonn (5 May), Berlin (22 June), Paris (17 July), and Moscow (12 September). The Polish Foreign Minister participated in the part of the Paris meeting that dealt with the Polish-German borders. Overcoming Soviet objections to a united Germany's membership in NATO was of key importance. This was accomplished in July when the alliance, led by President George H.W. Bush, issued the London Declaration on a transformed NATO. On 16 July, President Gorbachev and Chancellor Kohl announced the agreement in principle on a united Germany
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