Menzies Government (1939–41) in December 1944. The formation of a new party – the Liberal Party of Australia – was formally announced at Sydney Town Hall on 31 August 1945. After an initial loss to Labor at the 1946 election, Menzies led the Liberals to victory at the 1949 election against the incumbent Labor government led by Ben Chifley, and the Coalition stayed in office for a record 23 years. Menzies Government (1939–41) The Menzies Government (1939–1941) refers to the federal executive government of Australia led by Prime Minister Robert Menzies. Menzies led the United Australia Party in the Australian Parliament from 1939–1941.
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;