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 New Zealand the position falls to the parliamentary leader of the largest political party among those forming the government. The prime minister may lead a coalition government and/or a minority government dependent on support from smaller parties during confidence and supply votes. Once appointed and sworn in by the governor-general, the prime minister remains in the post until dismissal, resignation, or death in office. The prime minister, like other ministers, holds office "during the pleasure of the Governor-General", so theoretically, the governor-general can dismiss the prime minister at any time; however, their power to do so is heavily circumscribed by convention. The