evidence: The Guyana–Venezuela territorial dispute is an ongoing territorial dispute between Guyana and Venezuela over the Essequibo region, also known as Esequibo or Guayana Esequiba in Spanish (Spanish pronunciation: [ɡwaˈʝana eseˈkiβa] ),[1] a 159,500 km2 (61,600 sq mi) area west of the Essequibo River. The territory, excluding the Venezuelan-controlled Ankoko Island, is controlled by Guyana as part of six of its regions,[note 1] based on the 1899 Paris Arbitral Award. It is also claimed by Venezuela as the Guayana Esequiba State.[2][page needed][3][4] The boundary dispute was inherited from the colonial powers (Spain in the case of Venezuela, and the Netherlands and the United Kingdom in the case of Guyana) and has persisted following the independence of Venezuela and Guyana. [...] Venezuela recognises as territory of the new State the one which is located on the east of the right bank of the Essequibo River, and reiterates before the new State, and before the international community, that it expressly reserves its rights of territorial sovereignty over all the zone located on the west bank of the above-mentioned river. Therefore, the Guyana-Essequibo territory over which Venezuela expressly reserves its sovereign rights, limits on the east by the new State of Guyana, through the middle line of the Essequibo River, beginning from its source and on to its mouth in the Atlantic Ocean.