A watchtower stands along the United Nations buffer zone in the district of Famagusta, northern Cyprus in this March 14, 2014 file picture. Cyprus is split by the buffer zone east to west, with ethnic Greeks living in the south and Turks in the north. On the 25th anniversary of the fall of the Berlin Wall, there are still barriers separating communities around the world, from the barbed wire fence dividing the two Koreas, the fence around the Spanish enclave of Melilla, to the sectarian Peace Wall in Belfast, the Israel-Gaza barrier and the border separating Mexico from the United States. Picture taken March 14, 2014. REUTERS/Neil Hall/Files (CYPRUS - Tags: ANNIVERSARY POLITICS SOCIETY)

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