Administrative units of Pakistan
The administrative units of Pakistan () consist of four provinces (Balochistan, Khyber Pakhtunkhwa, Punjab, and Sindh), two autonomous territories (Azad Jammu and Kashmir, Gilgit-Baltistan) and one federal territory (Islamabad Capital Territory). Each province and territory is subdivided into divisions, which are further subdivided into districts, which are further subdivided into tehsils, or taluka, which are further subdivided into union councils.
West Pakistan
West Pakistan was politically dominant despite East Pakistan having over half of the population and a disproportionately small number of seats in the Constituent Assembly. This inequality of the two wings and the geographical distance between them were believed to be delaying the adoption of a new constitution. To diminish the differences between the two regions, the government decided to reorganise the country into two distinct provinces under the One Unit policy announced by Prime Minister Chaudhry Muhammad Ali on 22 November 1954.