Numerous attempts to secure him German citizenship were attempted over the next few years, but it wasn’t until 1932 that a solution was found when Dietrich Klagges, a Nazi Party member who was serving as the Minister of the Interior for the Free State of Brunswick, arranged for Hitler to be appointed as an administrator for the state’s delegation to the Reichsrat in Berlin on 25 February 1932.

The Stasi used blackmail, intimidation, and imprisonment, as well as psychological manipulation, to target perceived dissidents. By the time the organisation’s activities ended following the fall of the Berlin Wall in 1989, the Stasi was regarded as one of the most effective intelligence agencies of the Cold War era.

Metropolis later gained recognition as a masterpiece of early cinema with Its iconic imagery influencing countless films and works of science fiction.

Over the following years the barbed wire and mesh barrier that was constructed overnight was gradually replaced with a virtually impregnable ring of reinforced concrete that ran 155km around West Berlin.