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 Tuvalu of chief minister, which was created in 1975. If the prime minister dies, as has happened on one occasion, the deputy prime minister becomes acting prime minister until a new one is elected by parliament. The prime minister can lose his office by resigning, being defeated in a no confidence vote by parliament, or losing his seat in a parliamentary election. Several former prime ministers have been appointed the Governor-General of Tuvalu. Prime Minister of Tuvalu The Prime Minister of Tuvalu is the head of government of Tuvalu. According to Tuvalu's constitution, the prime minister must always be a member