The Postenpflicht (German: "Duty of guards") was a general order issued to SS-Totenkopfverbände guards in Nazi concentration camps to summarily execute insubordinate prisoners. The order required guards to shoot prisoners who engaged in resistance or escape attempts, without warning; failing to do so would result in dismissal or arrest. The Postenpflicht was originally issued on October 1, 1933, for guards at Dachau concentration camp, but was later extended to other concentration camps.