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
Chancellor of Germany German, the archbishop of Mainz was "ex officio" German archchancellor, a position he held until the end of the Holy Roman Empire in 1806, while "de jure" the archbishop of Cologne was chancellor of Italy and the archbishop of Trier of Burgundy. These three prince-archbishops were also prince-electors of the empire electing the King of the Romans. Already in medieval times, the German chancellor had political power like Archbishop Willigis (archchancellor 975–1011, regent for King Otto III of Germany 991–994) or Rainald von Dassel (Chancellor 1156–1162 and 1166–1167) under Emperor Frederick Barbarossa. In 1559, Emperor Ferdinand I established the agency