Latvia division. The borders of historical and cultural regions usually are not explicitly defined and in several sources may vary. In formal divisions, Riga region, which includes the capital and parts of other regions that have a strong relationship with the capital, is also often included in regional divisions; e.g., there are five planning regions of Latvia (), which were created in 2009 to promote balanced development of all regions. Under this division Riga region includes large parts of what traditionally is considered Vidzeme, Courland, and Zemgale. Statistical regions of Latvia, established in accordance with the EU Nomenclature of Territorial Units
History of Latvia meant that Latvia had to build a new railway line. Latvia received town of Aknīste and some smaller territories in Aknīste Municipality, Ukri parish and Bauska Municipality. Latvia gave up 283,3 square km, while receiving 290 km. About 16-20 000 ethnic Latvians thus became Lithuanian citizens. As a result of Polish–Soviet War, Poland secured a 105 km long border with Latvia. In July 1919 Poland announced annexation of all lands south of Daugavpils and their inclusion in Braslaw district. Latvia could not complain, as it still needed Polish military help for the decisive Battle of Daugavpils against the Soviets. The