Furthermore, hitler has been so kind as to announce to his loyal, devoted people that as of today all military personnel are under orders of the gestapo, and that any soldier who knows that one of his superiors was involved in this cowardly attempt on the führer’s life may shoot him on sight!

what does frank’s tone reveal about her perspective of german soldiers serving hitler?

german soldiers were not all supportive of hitler.
german soldiers were too afraid to challenge hitler.
hitler did not need to resort to threats to control his soldiers.
hitler brainwashed his soldiers to follow him.