Keskpolügoon or the Central training area is the main military training field of the six areas used by the Estonian Defence Forces. Defense Forces central training area covers 11,951 ha (29,530 acres) and is located in the eastern part of the Kuusalu municipality in Harju County. It borders with three other rural municipalities: Kadrina to the east, Tapa to the south (both in Lääne-Viru County) and Anija Parish of Harju County to the south-west.