SS-Oberabschnitt Weichsel was a division strength command of the Allgemeine-SS that controlled most General-SS units located in East Prussia. Prior to 1939, the division's primary focus was on German activity in the free city of Danzig as well as security preparations for war over the Polish Corridor question.
After 1940, Oberabschnitt Weichsel became heavily involved in commanding atrocity actions in Poland; as World War II progressed, the Oberabschnitt itself became nearly one and the same with the office of the SS and Police Leaders.
Oberabschnitt Weichsel effectively ceased to exist in late 1944 as the Red Army overran Poland. The division was formally disbanded upon the German surrender in May 1945.