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 Indonesia Prime Minister of Indonesia Indonesia, in its various incarnations, had the position of Prime Minister () from 1945 until 1966. During this period, the Prime Minister was in charge of the Cabinet of Indonesia, one of the three branches of government along with the Central Indonesian National Committee and the President. Following his 1959 decree, President Sukarno assumed the role and powers of Prime Minister until his resignation in 1966. The 1945 Constitution of Indonesia states that Indonesia is built around a presidential system; as such, there were no constitutional provisions for a Prime Minister. Nevertheless, beginning in 1945 a