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;
Prayut Chan-o-cha Prayut has appeared on a weekly television program called "Sustainable Development from a Royal Philosophy". Following the 2013–2014 Thai political crisis, Prayut attempted to bring the rival parties to an agreement. When that failed, he staged a coup against the caretaker government of Yingluck Shinawatra on 22 May 2014. Yingluck herself had been removed from office earlier by the Constitutional Court, and Niwatthamrong Boonsongpaisan was acting in her place. After the coup, Prayut repealed the 2007 constitution and established the NCPO to govern the nation, with himself as its head. Prayut quickly cracked down on dissent. He put in place