Bangladesh is governed by the constitution of 1972 as amended. The head of state is the president, a largely ceremonial position, and the head of government is the prime minister. There is a 300-seat unicameral National Parliament, whose members are popularly elected from constiuencies for five-year terms. The major political parties are the Bangladesh Nationalist party and the Awami League. Administratively, the nation is divided into 6 divisions, which are subdivided into 64 districts.