Original sentence: However, the TRNC has yet to be recognised by any country other than Turkey.The TRNC is separated from the south by the United Nations-controlled Green Line.The north of the island has been under Turkish military occupation since 1974 which established the subsequent Turkish Republic of Northern Cyprus
Edited sentence: It is separated from the south by the United Nations-controlled Green Line and is only recognized by Turkey.The north of the island has been under Turkish military occupation since 1974 when a large-scale Turkish invasion took place, resulting in the expulsion of thousands of ethnic Greeks from the north, and the subsequent establishment of a separatist regime to govern the occupied area which currently styles itself the Turkish Republic of Northern Cyprus