How did stalin attempt to control thought in the soviet union?

Explanation:

Stalin feared most of all the old generation of revolutionaries who had been part of Lenin's revolution and particularly Trotsky. He purged the party by deporting, incarcerating and killing old Bolsheviks, businessmen, writers and intellectuals. He did it publicly, justifying his purges with forced confessions. In a few years he purged millions and established the precedent. With the purge Stalin ensured that old Bolsheviks and critical intellectuals were not a threat, and he could build his own ideology, pretty much as far from Marx's and Lenin's ideas as he could.

Stalin dreaded most of all the ancient era of progressives who had been portion of Lenin's insurgency and especially Trotsky. He cleansed the party by extraditing, imprisoning and slaughtering ancient Bolsheviks, businessmen, scholars and knowledge. He did it freely, legitimizing his cleanses with constrained confessions. In some a long time he cleansed millions and built up the point of reference. With the cleanse Stalin guaranteed that ancient Bolsheviks and basic knowledge were not a risk, and he seem construct his possess philosophy, lovely much as distant from Marx's and Lenin's thoughts as he could.

Explanation:

to act quickly in times of danger to the united states

because you have to act quickly if you want to live/survive.

maybe i can