Phraya Phahonphonphayuhasena Phraya Phahonphonphayuhasena Phraya Phahonphonphayuhasena (, ), 29 March 1887 – 14 February 1947), short Phraya Phahon, born as Phot Phahonyothin (), was a Thai military leader and politician. He became the second prime minister of Siam in 1933 after ousting his predecessor in a coup d'état. He retired in 1938 after serving five years as prime minister. Phot was born in Phra Nakhon Province (present-day Bangkok) to a Teochew Thai Chinese father, Colonel Kim Phahonyothin (), and a Thai Mon mother, Chap Phahonyothin (). After attending the Chulachomklao Royal Military Academy, in 1903 he was sent by royal scholarship to
Acting prime minister is on vacation, or is in ill health. In the early 20th century, when travel by ship was still the norm, it was not uncommon for there to be an acting Prime Minister for months on end. The deputy Prime Minister is usually designated as the acting Prime Minister, although another senior member of the government may fill the role if both the Prime Minister and deputy Prime Minister are unavailable. An acting Prime Minister is required quite frequently – for instance, between 3 December 2007 and 23 February 2009 (during Kevin Rudd's first term), Julia Gillard acted as Prime