Answer:
Roots of evil is discussed below in details.
Step-by-step explanation:
1. Three similarities of Adolf Hitler and Stalin are such as:
- Both hate democracy.
- Both are the accuser of mass murders in History.
- Both belong from the poor background and become the dictators of the most powerful countries in the world.
2. Hitler ordered the bombing campaign against London and other British cities during the Battle of Britain the main objective was to neutralize the royal air force.
3. Stalin launched the Great purge which was a campaign of terror aimed at anyone who threatens Stalin's power.
4. Both were tyrannical we can not judge them on the bases of more or less because they both put shame on Humanity.