Berlin Declaration (1945) in the context of "Allied occupation of Germany"

The entirety of Germany was occupied and administered by the Allies of World War II, from the Berlin Declaration on 5 June 1945 to the establishment of West Germany on 23 May 1949. Unlike occupied Japan, Nazi Germany was stripped of its sovereignty and its government was entirely dissolved. After Germany formally surrendered on Tuesday, 8 May 1945, the four countries representing the Allies (the United States, United Kingdom, Soviet Union, and France) asserted joint authority and sovereignty through the Allied Control Council (ACC).

Germany after the war was a devastated country – roughly 80 percent of its infrastructure was in need of repair or reconstruction – which helped the idea that Germany was entering a new phase of history ("zero hour"). At first, Allied-occupied Germany was defined as all territories of Germany before the 1938 Nazi annexation of Austria. The Potsdam Agreement on 2 August 1945 defined the new eastern German border by giving Poland and the Soviet Union all regions of Germany east of the Oder–Neisse line (eastern parts of Pomerania, Neumark, Posen-West Prussia, East-Prussia and most of Silesia) and divided the remaining "Germany as a whole" into four occupation zones, each administered by one of the Allies.

At the end of World War II in Europe, Austria was occupied by the Allies and declared independence from Nazi Germany on 27 April 1945 (confirmed by the Berlin Declaration for Germany on 5 June 1945), as a result of the Vienna offensive. The occupation ended when the Austrian State Treaty came into force on 27 July 1955.

After the Anschluss in 1938, Austria had generally been recognized as part of Nazi Germany. In November 1943, however, the Allies agreed in the Declaration of Moscow that Austria would instead be regarded as the first victim of Nazi aggression—without denying Austria's role in Nazi crimes—and treated as a liberated and independent country after the war.

East Germany, officially the German Democratic Republic (GDR), was a country in Central Europe from its formation on 7 October 1949 until its reunification with West Germany (Federal Republic of Germany) on 3 October 1990. Until 1989, it was generally viewed as a communist state and described itself as a socialist workers' and peasants' state. The economy of the country was centrally planned and state-owned. Although the GDR had to pay substantial war reparations to the Soviet Union, its economy became the most successful in the Eastern Bloc.

Before its establishment, the country's territory was administered and occupied by Soviet forces following the Berlin Declaration abolishing German sovereignty in World War II. The Potsdam Agreement established the Soviet-occupied zone, bounded on the east by the Oder–Neiße line. The GDR was dominated by the Socialist Unity Party of Germany (SED), a communist party, before being democratized and liberalized amid the revolutions of 1989; this paved the way for East Germany's reunification with West Germany. Unlike the government of West Germany, the SED did not see its state as the successor to the German Reich (1871–1945). In 1974, it abolished the goal of unification in the constitution. The SED-ruled GDR was often described as a Soviet satellite state; historians describe it as an authoritarian regime.

The German Instrument of Surrender was a legal document effecting the unconditional surrender of the remaining German armed forces to the Allies, ending World War II in Europe. It was signed at 22:43 CET on 8 May 1945 and took effect at 23:01 CET on the same day.

The day before, Germany had signed another surrender document with the Allies in Reims in France, but it was not recognized by the Soviet Union, which demanded among other things that the act of surrender should take place at the seat of government of Nazi Germany from where German aggression had been initiated. Therefore, another document needed to be signed. In addition, immediately after signing the first document, the German forces were ordered to cease fire in the west and continue fighting in the east. Germany under the Flensburg Government led by the head of state, Grand-Admiral Karl Dönitz, also accepted the Allied suggestion to sign a new document. The document was signed at the seat of the Soviet Military Administration in Germany (Karlshorst, Berlin) by representatives from the German Oberkommando der Wehrmacht (OKW), the Allied Expeditionary Force represented by the British, and the Supreme High Command of the Soviet Red Army, with further French and American representatives signing as witnesses. This time, Field-Marshal Wilhelm Keitel was the highest ranking representative of Germany at the signing ceremony. This surrender document also led to the de facto fall of Nazi Germany. As one result of the German downfall, the Allies had de facto occupied Germany since the German defeat – which was later confirmed via the Berlin Declaration by the four countries of Allies as the common representative of new Germany (France, USSR, UK and the US), on 5 June 1945.

From 1945 to 1990, the divided Germany began with the Berlin Declaration, marking the abolition of the German Reich and Allied-occupied period in Germany on 5 June 1945, and ended with the German reunification on 3 October 1990.

Following the collapse of the Third Reich in 1945 and its defeat in World War II, Germany was stripped of its territorial gains. Beyond that, more than a quarter of its old pre-war territory was annexed by communist Poland and the Soviet Union. The German populations of these areas were expelled to the west. Saarland was a French protectorate from 1947 to 1956 without the recognition of the "Four Powers", because the Soviet Union opposed it, making it a disputed territory.

The government of Nazi Germany was a totalitarian dictatorship governed by Adolf Hitler and the Nazi Party according to the Führerprinzip. Nazi Germany was established in January 1933 with the appointment of Adolf Hitler as Chancellor of Germany, followed by suspension of basic rights with the Reichstag Fire Decree and the Enabling Act which gave Hitler's regime the power to pass and enforce laws without the involvement of the Reichstag or German president, and de facto ended with Germany's surrender in World War II on 8 May 1945 and de jure ended with the Berlin Declaration on 5 June 1945.

As the successor to the government of the Weimar Republic, it inherited the governmental structure and institutions of the previous state. Although the Weimar Constitution technically remained in effect until the German surrender, there were no actual restraints on the exercise of state power. In addition to the already extant Weimar government, the Nazi leadership created a large number of different organizations for the purpose of helping them govern and remain in power. They pursued a policy of rearmament and strengthened the Wehrmacht, established an extensive national security apparatus and created the Waffen-SS, the combat branch of the Schutzstaffel (SS).