During the Seven Years ' War , he became lieutenant general .
After the death of the major general Christian Friedrich von Blanckensee , Krockow received his place as head of Blanckensee 's former dragoon regiment .
During the Seven Years ' War , Krockow became lieutenant general .
After the death of the major general Christian Friedrich von Blanckensee , Krockow received his place as head of Blanckensee 's former dragoon regiment .