The Chiefdom of Krannkush (Ognian: Ушиеӄўенн Краннкушана, Ushieqwenn Krannkushana; Russian: Краннкушкая Вождество, Krannkushkaya Vozhdyestvo) was a former chiefdom located in Western Antarctica. At its height it included most of the territory of modern day Ognia and some areas outside. Much of the chiefdom was conquered by the Russian Empire by the 1840s, with the rest of the chiefdom becoming a protectorate of Russia. The protectorate was finally absorbed into Russia as the Krannkush Oblast in 1902. Following the collapse of the Russian Empire in 1917, the chiefdom was re-established, but attempts to regain control over its historic territories resulted in a civil war which lasted until the 1930s. These regions would eventually reunify under the United Chiefdom of Ognia in the 1940s, whic