Answer: Both systems were headed by a single person.
Step-by-step explanation:
Other facts;
Both systems were dominated by a single party, with the Nazis in Germany and the Communist in the Soviet Union.
Both systems were driven by an ideology, fascism in Germany and communism in the Soviet Union.
Both leaders gained their positions when their countries were in need of leadership.
Both leaders' policies demonstrate their dictatorship, and each made a negative impact on certain populations. Stalin’s policy led to the death of many peasants and Hitler’s policy caused the near extinction of the Jewish population