Answer:
Napoleon removes Snowball for his own purposes just as Stalin removed those in his own party.
Step-by-step explanation:
"Animal farm" was written to be a great political allegory, pointing out sutuations of hypocrisy, seizure of power, inefficiency and abuse of authority between real political luders and their disastrous achievements in their countries.
This book directly refers to the history of societal union and shows how Stalin did not even consider his own allies in order to maintain his national power and dominance. This can be seen when Napoleon removes Snowball for his own purposes, just as Stalin removed those from his own party.