June 1933 Siamese coup d'état

The Siamese coup d’état of June 1933 (Thai: รัฐประหาร 20 มิถุนายน พ.ศ. 2476) took place peacefully on 20 June 1933 in Bangkok and was led was led by Army Colonel Phraya Phahonphonphayuhasena (Phraya Phahon) against the administration of Phraya Manopakorn Nitithada (Phraya Mano). The coup was in fact a counter-coup against the dictatorial policies of Phraya Mano, stemming from his resentment of a proposal by Pridi Banomyong, the progressive leader of the Khana Ratsadon which Phahon was a member of, to reform Thailand's economy. It marked the first time in Thai history that the military successfully overthrew the constitutional government.