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
Politics of Latvia have an opposite practice, requiring visas from both citizens and non-citizens of Latvia, but allowing non-citizens to travel to Russia with a cheaper visa. As a transitional clause, the Latvian law allows dual citizenship for those who were forced to leave Latvia during the Soviet or Nazi occupation and adopted another citizenship while away from Latvia. In order to be eligible for dual citizenship, they had to claim it by July 1, 1995. After that date the other citizenship must be renounced upon the acceptance of the Latvian citizenship. Latvian is the sole state language in Latvia; while the threatened