Elements of the SS-VT served with the Wehrmacht during the occupation of the Sudetenland, Austria, and Czechoslovakia. For those operations, the SS-VT was under the command of the army. The SS-VT also formed an Artillery Regiment during this time-frame which was used to fill the gaps in a number of army units for those events. The SS-VT regiments "Deutschland" and "Germania" along with the "Leibstandarte" participated in the invasion of Poland, with "Der Führer" (recruited in Austria after the Anschluss) in reserve at Prague. In September 1939, a combined unit of SS-VT and Heer (army) troops conducted operations jointly as Panzer Division "Kempf" during the invasion of Poland. It fought alongside army units at Rozan, Modlin, Łomża and Kmiczyn. The division was disbanded near the Polish city of Nidzica on 7 October 1939.