What plot did Kurt Freiherr von Plettenberg and Claus von Stauffenberg work together on?
Kurt von Plettenberg:  He was involved in the preparations for the 20 July plot, an attempt to assassinate Adolf Hitler, Führer of the Third Reich. 20 July plot: On 20 July 1944, Claus von Stauffenberg and other conspirators attempted to assassinate Adolf Hitler, Führer of Nazi Germany, inside his Wolf's Lair field headquarters near Rastenburg, East Prussia.
i don't know