The Battle of Berlin, designated the Berlin Strategic Offensive Operation by the Soviet Union, was the final major offensive of the European Theatre of World War II.

Starting on 16 April 1945, the Red Army breached the German front as a result of the Vistula–Oder Offensive and advanced westward as much as 40 kilometres a day through East Prussia, Lower Silesia, East Pomerania, and Upper Silesia, temporarily halting on a line 60 kilometres east of Berlin along the Oder River. When the offensive resumed, two Soviet fronts (army groups) attacked Berlin from the east and south, while a third overran German forces positioned north of Berlin. The Battle in Berlin lasted from 20 April 1945 until the morning of 2 May.

The first defensive preparations at the outskirts of Berlin were made on 20 March, when the newly appointed commander of Army Group Vistula, General Gotthard Heinrici, correctly anticipated that the main Soviet thrust would be made over the Oder River. Before the main battle in Berlin commenced, the Soviets managed to encircle the city as a result of their success in the battles of the Seelow Heights and Halbe. During 20 April 1945, the 1st Belorussian Front led by Marshal Georgy Zhukov started shelling Berlin's city centre, while Marshal Ivan Konev's 1st Ukrainian Front had pushed in the north through the last formations of Army Group Centre. The German defences were mainly led by Helmuth Weidling and consisted of several depleted, badly equipped, and disorganised Wehrmacht and Waffen-SS divisions, the latter which ironically included many SS foreign volunteers, as well as many Volkssturm and Hitler Youth members. Within the next few days, the Soviets rapidly advanced through the city and reached the city centre where close combat raged.

Berlin ( /bɜrˈlɪn/; German pronunciation: [bɛɐ̯ˈliːn] ( listen)) is the capital city of Germany and one of the 16 states of Germany. With a population of 3.5 million people, Berlin is Germany's largest city and is the second most populous city proper and the eighth most populous urban area in the European Union. Located in northeastern Germany, it is the center of the Berlin-Brandenburg Metropolitan Region, which has 5.9 million residents from over 190 nations. Located in the European Plains, Berlin is influenced by a temperate seasonal climate. Around one third of the city's area is composed of forests, parks, gardens, rivers and lakes.

First documented in the 13th century, Berlin was the capital of the Kingdom of Prussia (1701–1918), the German Empire (1871–1918), the Weimar Republic (1919–1933) and the Third Reich (1933–1945).Berlin in the 1920s was the third largest municipality in the world. After World War II, the city became divided into East Berlin—the capital of East Germany—and West Berlin, a West German exclave surrounded by the Berlin Wall (1961–1989). Following German reunification in 1990, the city regained its status as the capital of Germany, hosting 147 foreign embassies.