forms an agglomeration with Leipzig in Saxony. This area is known for its highly developed chemical industry (the Chemiedreieck – chemical triangle), with major production plants at Leuna, Schkopau (Buna-Werke) and Bitterfeld. Finally, in the east, Dessau-Roßlau and Wittenberg are situated on the Elbe (as is the capital Magdeburg) in the Anhalt-Wittenberg region. Administrative subdivisions The capital of Saxony-Anhalt is Magdeburg. It is the second-largest city in the state, closely after Halle (Saale). From 1994 to 2003, the state was divided into three regions (Regierungsbezirke), Dessau, Halle and Magdeburg and, below the regional level, 21 districts (Landkreise). Since 2004, however, this system has been replaced by 11 rural districts and three urban districts. The districts are: Altmarkkreis Salzwedel Anhalt-Bitterfeld Börde Burgenlandkreis Harz Jerichower Land Mansfeld-Südharz Saalekreis Salzlandkreis Stendal Wittenberg The independent cities are: Dessau-Roßlau Halle (Saale) Magdeburg Largest towns The largest towns in Saxony-Anhalt as of 31 December 2021: History Saxony-Anhalt is a federal state with a relatively short history, if compared to other German federal states. It was formed in 1945 out of former Prussian territories and mainly consists of three distinct historical regions: the area around Magdeburg, the formerly independent Anhalt and a southern part which once was part of Saxony but had been annexed by Prussia in the 19th century. This historical origin can still be seen in the coat of arms of the federal state. In April 1945 the US Army took control of most of the western and northern area of the future Saxony-Anhalt. The U.S. Group Control Council, Germany (a precursor of the OMGUS) appointed the first non-Nazi officials in leading positions in the area. Erhard Hübener, put on leave by the Nazis, was reappointed Landeshauptmann (state governor). By early July the US Army withdrew from the former Prussian Province of Saxony to make way for the Red Army to take it as part of the Soviet occupation zone, as agreed by the London Protocol in 1944. On 9 July the Soviet SVAG ordered the merger of the Free State of Anhalt, Halle-Merseburg, the governorate of Magdeburg (in its then borders), Allstedt (before Thuringia) and some Brunswickian eastern exclaves and salients (Calvörde and the eastern part of the former Blankenburg district) with the Province of Saxony. The previously Saxon Erfurt governorate had become a part of Thuringia. Anhalt takes its name from Anhalt Castle near Harzgerode; the origin of the name of the castle