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In page West Berlin:
"On 18 May 1962 East Germany opened the so-called Tränenpalast checkpoint hall (Palace of Tears) at Berlin Friedrichstraße station, where Easterners had to say a sometimes tearful farewell to returning Westerners as well as the few Easterners who had managed to get a permit to visit the West. Until June 1963 the East deepened its border zone around West Berlin in East Germany and East Berlin by clearing existing buildings and vegetation to create an open field of view, sealed off by the Berlin Wall towards the West and a second wall or fence of similar characteristics to the East, observed by armed men in towers, with orders to shoot at escapees.[citation needed]
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