Prime Minister of Thailand Rajanubhab took over this role. In fact, the office most considered the precursor of that of the prime minister was the ancient office of "Samuha Nayok" (สมุหนายก), which was run by an "Akkhra Maha Senabodi" (อัครมหาเสนาบดี) or "chief minister in charge of civilian affairs". The first Prime Minister of Siam was Phraya Manopakorn Nititada, a judge. The title of the office was changed from "Prime Minister "of Siam"" to "Prime Minister "of Thailand"" in 1945 and then permanently with the renaming of Siam to Thailand in 1949. For most of its existence the office has been occupied by Army leaders;
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