of eight years in office. The Constitutional Court's ruling was that his term in office began in April 2017, simultaneously with the new constitution, although General Prayuth had ruled as the leader of the government since the 2014 military coup. See also Dhamma Society Fund History of Bangkok History of Southeast Asia History of Isan History of the Thai Forest Tradition List of Kings of Thailand Monarchs' family tree List of prime ministers of Thailand Peopling of Thailand Politics of Thailand Reactions to the death of Bhumibol Adulyadej Siam Society Thai cultural mandates Thai studies Thaification South Thailand insurgency Notes References Citations Bibliography Section 'The Japanese invasion of Thailand, 8 December 1941' Part one Part three External links Thailand Country Study for the Library of Congress, 1987. Barbara Leitch LePoer, editor. This text comes from the Country Studies Program. The series presents a description and analysis of the historical setting and the social, economic, political, and national security systems and institutions of countries throughout the world. Thailand profile – Timeline at the BBC News Online