In Animal Farm, what strategies do the pigs use to suppress the other animals on the farm?
They use many of the common propaganda techniques, such as:
1. Glittering generalities--use of words with positive connotations to appeal to one's sense of duty, compassion, etc. The pigs employ GG by rallying the other animals' "patriotism" for their new government and by originally having them sing "Beasts of England" and chant a motto for the farm.
2. Lesser of Two Evils--later in the book when rations are low and morale is even lower, the pigs remind the other animals how bad things were under Mr. Jones and that even though the situation is not currently great, it could always be worse.
3. Pinpointing the Enemy--as Napoleon gains more power on the farm and eventually expels Snowball, he begins his quest to blackball Snowball by blaming all negative events on the mysterious and seemingly ubiquitous Snowball, including the windmill's destruction.
4. Assertion--this technique is the asserting of something as true or logical without any evidence. When the pigs want to rewrite history, they simply do. If any of the other animals question them about past promises or traditions, the pigs simply kill their opposition or assert that they were mistaken.
Hope this helps--you can find examples in Animal Farm of the pigs using all of the main propaganda devices; so these are just a few.
Through the use of clever arguments, propaganda, and intimidation, the pigs manipulate and control the other animals on the farm. The pigs begin to separate themselves from the other animals and receive certain privileges by arguing that they are brainworkers. After Napoleon usurps power, he begins altering the commandments in order to support his agenda. He then establishes Snowball as the foremost enemy of the farm and uses him as a scapegoat whenever anything goes awry. Squealer garners support for Napoleon by cleverly manipulating the animals' ability to reason. Squealer uses euphemisms to explain unfavorable policies, reveres Napoleon as their supreme leader, and reminds the animals of Jones's potential return. The pigs also lie about statistics regarding food supplies and use "bandwagon" techniques to propagate Napoleon's agenda. Napoleon also intimates the animals with the threat of violence. He publicly executes those who do not agree with his policies, and his vicious guard dogs strike fear into the other animals.