Siam is renamed Thailand by <a href="https://en.wikipedia.org/wiki/Plaek_Phibunsongkhram" id="mw9g" rel="mw:WikiLink" title="Plaek Phibunsongkhram">Plaek Phibunsongkhram</a>, the country's third <a href="https://en.wikipedia.org/wiki/Prime_Minister_of_Thailand" id="mw9w" rel="mw:WikiLink" title="Prime Minister of Thailand">prime minister</a>.