In this book, you can see a mass of animals following the leaders. This mass focuses on the positive aspects of the system without thinking about the inconvenience.
Another group that detects this is that of pigs. They supervise the work of others out getting too tired. This group is better treated.
And the last group is the leader's group within one part, the oldest pig, Sage the Elder, who explains how to build a better world is like Lenine. Another part there is the two pig Napoleon and Snowball.
They have a different idea to lead the world. Napoleon is more like Staline and commands in terror. But Snowball is equal, Trotsky, an opponent of Staline.
The pig wants to govern in peace. Staline ousted his principal opponent, Leon Trotsky. In the book, Napoleon also excluded Snowball.
An other similarities is the flag, in fact the USSR flag is red and