is still no verdict to the officials. Budget The defence budget nearly tripled from 78.1 billion baht in 2005 to 207 billion baht for FY2016 (1 October 2015 – 30 September 2016), amounting to roughly 1.5% of GDP. The budget for FY2017 is 214 billion baht (US$6.1 billion)—including funds for a submarine purchase—a nominal increase of three percent. The proposed budget again represents around 1.5% of GDP and eight percent of total government spending for FY2017. The FY2018 defence budget is 220 billion baht, 7.65% of the total budget. According to Jane's Defence Budgets, the Royal Thai Army generally receives 50% of defense expenditures while the air force and navy receive 22% each. The Ministry of Defense budget for FY2021 is 223,464 million baht, down from 231,745M baht in FY2020. History Ancient military forces The Royal Siamese Armed Forces was the military arm of the Siamese monarchy from the 12th to the 19th centuries. It refers to the military forces of the Sukhothai Kingdom, the Ayutthaya Kingdom, the Thonburi Kingdom and the early Rattanakosin Kingdom in chronological order. The Siamese army was one of the dominant armed forces in Southeast Asia. As Thailand has never been colonized by a European power, the Royal Thai Armed Forces boasts one of the longest and uninterrupted military traditions in Asia. The army was organized into a small standing army of a few thousand, which defended the capital and the palace, and a much larger conscription-based wartime army. Conscription was based on the "ahmudan" system, which required local chiefs to supply, in times of war, a predetermined quota of men from their jurisdiction on the basis of population. The wartime army also consisted of elephantry, cavalry, artillery, and naval units. In 1852, the Royal Siamese Armed Forces came into existence as permanent force at the behest of King Mongkut, who needed a European trained military force to thwart any Western threat and any attempts at colonialisation. By 1887, during the next reign of King Chulalongkorn, a permanent military command in the Kalahom Department was established. The office of Kalahom, as a permanent office of war department, was established by King Borommatrailokkanat (1431–1488) in the mid-15th century during the Ayutthaya Kingdom. Siam's history of organized warfare is thus one of Asia's longest and uninterrupted military traditions. However, since 1932, when the military, with the help of civilians, overthrew the system of absolute monarchy and instead