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Hace 9 horas · Between 1949 and the building of the Berlin Wall in 1961, an estimated 3.5 million East Germans – a sixth of the entire population – emigrated to the West, most via Berlin. 1967–89: the "Modern Frontier" A Bundesgrenzschutz Alouette II helicopter patrols the West German side of the inner German border, 1985.
- 1945
- 1945–90
- Up to 4 metres (13 ft)
- East Germany