Protests in West Berlin against the arrival of the Shah of Iran are brutally suppressed, during which Benno Ohnesorg is killed by a police officer. His death results in the founding of the terrorist group 2 June Movement.

West Berlin was a political enclave which comprised the western part of Berlin from 1948 until 1990, during the Cold War. Although West Berlin was de jure not part of West Germany, lacked any sovereignty, and was under military occupation until German reunification in 1990, the territory was claimed by the Federal Republic of Germany (FRG). The legality of this claim was contested by the Soviet Union and other Eastern Bloc countries, although West Berlin de facto aligned itself politically with the FRG from May 1949, was thereafter directly or indirectly represented in its federal institutions, and most of its residents were citizens of the FRG.