Turkey was furthermore forced to transfer to Greece "the exercise of her rights of sovereignty" over Smyrna in addition to "a considerable Hinterland, merely retaining a 'flag over an outer fort'." Though Greece administered the Smyrna enclave, its sovereignty remained, nominally, with the Sultan. According to the provisions of the Treaty, Smyrna was to maintain a local parliament and, if within five years time she asked to be incorporated within the Kingdom of Greece, the provision was made that the League of Nations would hold a plebiscite to decide on such matters.