Original sentence: The northern part has been under Turkish military occupation since 1974 and the regime established there styles itself the Turkish Republic of Northern Cyprus (which is separated from the south by the United Nations-controlled Green Line); however, this entity has yet to be recognised by any country other than Turkey
Edited sentence: The internationally unrecognized Turkish Republic of Northern Cyprus occupies the north of the island.This area been under Turkish military occupation since 1974 and is separated from the south by the United Nations-controlled Green Line