Council of Foreign Ministers
The Potsdam Agreement specified that the Council would be composed of the Foreign Ministers of the United Kingdom, the Union of Soviet Socialist Republics, China, France, and the United States. It would normally meet in London (at Lancaster House) and the first meeting was to take place no later than 1 September 1945. As the immediate important task, the Council was authorised to draw up treaties of peace with Italy, Romania, Bulgaria, Hungary and Finland, and to propose settlements of territorial questions outstanding on the termination of the war in Europe. Also the Council should prepare a peace settlement for Germany to be accepted when a "government adequate for the purpose is established".
The Ministers met two times in 1945: first at the London Conference of Foreign Ministers and then in December at the Moscow Conference of Foreign Ministers and again at the Paris Conference of Foreign Ministers in 1946.
The London Conferences was marred by a dispute between the Soviet Union and the United States over occupation of Japan and little of substance was accomplished. The Moscow conference was more productive; it was agreed to the preparation of peace treaties with Italy, Romania, Bulgaria, Hungary and Finland; the creation of an eleven power Far Eastern Commission and a four power Allied Council for Japan. It also agreed to the establishment by the United Nations of a commission for the control of atomic energy, as well as a number of other lesser issues bought about by the end of World War II. France joined the Council in 1946 and at the Paris Conference the final wording for the Paris Peace Treaties of 1947 was agreed. The outstanding issue of Free Territory of Trieste were resolved at the New York meeting of the Foreign Ministers in November and December 1946.
In 1947 the ministers met twice first in Moscow, in the Spring, and again in the Autumn in London, but by this time the Cold War was gathering pace and they failed to agree on a peace treaty for Germany and Austria. They did however agree to the dissolution of the free state of Prussia, thereby recognising the annexation of the Prussian territories east of the Oder-Neisse line.
At a meeting in Paris in September 1948 the Ministers failed to agree on what to do with the former Italian colonies. The council was revived in 1949 and met in Paris, during May and June, where they agreed to the ending of the Soviet blockade of Berlin, but failed to agree on German reunification. The Berlin meeting in 1954, ended in deadlock, but, the following year in Vienna, they agreed on a peace treaty for Austria (known as the Austrian State Treaty).
Meetings by the foreign ministers in Geneva the first at the Geneva Summit in July 1955 and again a year later failed to reach agreement on German reunification, or European security and disarmament. A third meeting in 1959 again failed to reach agreement over Germany. The Western powers would only agree to a comprehensive peace treaty with a Germany reunited under a democratic government, not treaties with the governments of East and West Germany. They also refused to agree with a Soviet proposal to a change in the status of Berlin from an occupied city into a demilitarised one.
Twelve years later in 1971 the foreign ministers of the four powers signed the Four Power Agreement on Berlin (effective from June 1972). It regularised trade and travel relations between West Berlin and West Germany and aimed at improving communications between East Berlin and West Berlin. The Soviet Union stipulated, however, that West Berlin would not be incorporated into West Germany. Along with the Basic Treaty (effective June 1973) which recognised two German states, and the two countries pledged to respect one another's sovereignty. Under the terms of the treaty, diplomatic missions were to be exchanged and commercial, tourist, cultural, and communications relations established. Under the Agreement and the Treaty, In September 1973, both German states joined the United Nations.
In 1990 after the fall of the Berlin Wall on 12 September 1990 the Treaty on the Final Settlement With Respect to Germany was signed by the four powers and the two German governments which was the final peace treaty of World War II and the restoration of German sovereignty. This allowed German reunification to take place on 3 October 1990 and the reunited country became fully sovereign again on 15 March 1991.