Flag of Burkina Faso of black, white, and red. These colours represented the three major tributaries of the Volta River, which flows south through the country: the Black Volta, the White Volta and the Red Volta. It is similar to the tricolor flag used by the German Empire from 1871 to 1918. The flag was changed when Upper Volta became Burkina Faso on 4 August 1984. From 1984 until 1997, the official Burkina Faso coat of arms used a revolutionary central crest featuring a mattock crossed with a Soviet AK-47 assault rifle, along with an open book symbolising the importance of education and the
Lake Volta with completion in 1965. Because of the formation of Lake Volta, about 78,000 people were relocated to new towns and villages, along with 200,000 animals belonging to them. About 120 buildings were destroyed, not including small residences, as over of territory were flooded. The Akosombo Dam provides electricity for much of the country, as well as for export to Togo, Benin, and nearby countries, to earn foreign exchange value. Lake Volta is also important for transportation, providing a waterway for both ferries and cargo watercraft. Since the huge lake lies in a tropical area, the water remains warm year-round naturally.