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 Pakistan members of the National Assembly and therefore is usually the leader of the majority party in the parliament. The Constitution of Pakistan vests the executive powers in the Prime Minister, who is responsible for appointing the Cabinet as well as running the executive branch, taking and authorising executive decisions, appointments and recommendations that require executive confirmation of the Prime Minister. Constitutionally, the Prime Minister serves as the chief adviser to President of Pakistan on critical matters and plays an influential role in appointment in each branch of the military leadership as well as ensuring the control of the military through