<P> A 1956 plebiscite ended the French administration of the Saar protectorate, and it joined the Federal Republic as Saarland on 1 January 1957, being its 10th state . </P> <P> The city of Berlin was not part of either state and continued to be under Allied occupation until the reunification of Germany in October 1990 . For administrative purposes, the three western sectors of Berlin were merged into the entity of West Berlin . The Soviet sector became known as East Berlin and while not recognised by the Western powers as a part of East Germany, the GDR declared it its capital (Hauptstadt der DDR). </P> <P> At the end of the war, General Eisenhower issued a non-fraternization policy to troops under his command in occupied Germany . This policy was relaxed in stages . By June 1945 the prohibition on speaking with German children was made less strict . In July it became possible to speak to German adults in certain circumstances . In September the policy was completely dropped in Austria and Germany . </P> <P> Nevertheless, due to the large numbers of Disarmed Enemy Forces being held in Rheinwiesenlagers throughout western Germany, the Americans and the British--not the Soviets--used armed units of Feldgendarmerie to maintain control and discipline in the camps . In June 1946, these German military police units became the last Wehrmacht troops to surrender their arms to the western powers . </P>

How were the post-world war ii boundaries in europe established