How do Napoleon and Snowball use propaganda in Animal Farm?

anduse propaganda
to convince the other animals that the pigs are operating in their best interests. This is shown
clearly in Chapter Three whenjustifies the stealing of the milk and apples for mixing in the
pigs' mash. Take a look at how he justifies this action:

Milk and apples (this has been proved by Science, comrades) contain substances
absolutely necessary to the well-being of a pig. We pigs are brainworkers. The whole management
and organisation of this farm depend on us. Day and night we are watching over your welfare. It
is for your sake that we drink that milk and eat those apples. Do you know what would happen if
we pigs failed in our duty? Jones would come back!

In
other words, Squealer uses a combination of false science and fear (the fear of Mr. Jones
returning) to convince the animals that the pigs should be allowed to eat better food. The use
of these two propaganda techniques proves successful, and the animals do not publicly complain
about rations in the future.

Napoleon and Squealer also use scapegoating to
divert attention away from their own mistakes and to blacken the reputation of Snowball. This is
clearly shown when the windmill is destroyed. Although the windmill collapses because its walls
were not built thick enough (a problem caused by the pigs), it is Snowball who takes the blame.
By doing this, Napoleon and Squealer are also able to further exploit the animals by having them
build a replacement.