Prime minister Bahrain's prime minister, Sheikh Khalifah bin Sulman Al Khalifah has been in the post since 1970, making him the longest serving non-elected prime minister. The post of prime minister may be encountered both in constitutional monarchies (such as Belgium, Denmark, Japan, Luxembourg, the Netherlands, Norway, Malaysia, Morocco, Spain, Sweden, Thailand, Canada, Australia, New Zealand, and the United Kingdom), and in parliamentary republics in which the head of state is an elected official (such as Finland, the Czech Republic, France, Greece, Hungary, India, Indonesia (1945-1959), Ireland, Pakistan, Portugal, Montenegro, Croatia, Bulgaria, Romania, Serbia and Turkey (1923-2018)). See also "First Minister", "Premier",
Prime Minister of Tonga the Legislative Assembly. Prime Minister of Tonga The Prime Minister (until 1970, Premier) of Tonga heads the government of the Kingdom of Tonga ("His Majesty's government"), while the King is the official head of the executive power. The office of Prime Minister was established by the Constitution of 1875, whose article 51 stipulates that the Prime Minister and other ministers are appointed and dismissed by the King. During the 2000s, the country experienced an increase in democratization. In March 2006, King Tāufaʻāhau Tupou IV appointed Dr. Feleti Sevele, a moderate member of the Human Rights and Democracy Movement, as Prime