The Reichskommissariat Ukraine excluded several parts of present-day Ukraine, and included some territories outside of its modern borders. It extended in the west from the Volhynia region around Lutsk, to a line from Vinnytsia to Mykolaiv along the Southern Bug river in the south, to the areas surrounding Kyiv, Poltava and Zaporizhia in the east. Conquered territories further to the east, including the rest of Ukraine (the Crimea, Chernihiv, Kharkiv, and the Donbas/Donets Basin), were under military governance until 1943–44. At its greatest extent, it included just under 340,000 square kilometers.