Field Marshal Plaek Phibunsongkhram (Thai: แปลก พิบูลสงคราม [plɛ̀ːk pʰí.būːn.sǒŋ.kʰrāːm]; alternatively transcribed as Pibulsongkram or Pibulsonggram; 14 July 1897 – 11 June 1964), locally known as Marshal P. (Thai: จอมพล ป.;[tɕɔ̄ːm.pʰōn.pɔ̄ː]), contemporarily known as Phibun (Pibul) in the West, was a Thai military officer and politician who served as the Prime Minister of Thailand from 1938 to 1944 and 1948 to 1957.