Gilgit Baltistan, (formerly known as the Northern Areas), () is the northern-most autonomous territory of Pakistan. In terms of land area it is bigger than Sierra Leone but smaller than Panama. It was part of the former Princely state of Kashmir and Jammu in 1800s and later leased to British eventually liberated after a planned liberation movement led by Gilgit Scouts. It borders Azad Jammu and Kashmir in the south Indian-administered Kashmir in southeast where KPK province of Pakistan to the west, and internationally borders Afghanistan to the north, although Tajikistan is separated by fourteen kilometres via Wakhan Corridor, the People's Republic of China to the northeast. Gilgit Baltistan, which became a single administrative unit in 1970, was formed from the amalgamation of the Gilgit Agency, the Baltistan District of the Ladakh Wazarat, and the states of Hunza and Nagar. Gilgit Baltistan remains part of the Kashmir dispute. The Government of Pakistan since Independence regards the entire area of Jammu and Kashmir as "territory in dispute" to be resolved by a plebiscite to be held throughout the former state in order to determine the area's final accession to either India or merger with Pakistan. Gilgit Baltistan is governed by a Governor and a Chief minister, the latter elected by a legislative assembly. Gilgit Baltistan covers 64,817 km² (28,174 mi²).