To be fair, Stalin didnt think Hitler was retarded enough to attack him after they signed their non-aggression pact. Fun fact: Hitler was that retarded.
Hitler considered Russians to be an inferior mass of born slaves who feel the need of a master, and he dreamed of clearing out much of the Soviet Union so that German settlers could procure living space.
While millions of Nazi troops massed on his border Stalin remained convinced that Adolf Hitler wouldn’t betray him.
That my friend is retahded. Russia can thank the gods for the brutal winter and that the German troops were not properly fortified.
WW2 is my thing.