The pigs slowly started to do the same things that Mr. Jones did. They took all the milk because they felt they needed it more. They list Seven Commandments on the barn wall, which the pigs have developed from the teachings of old Major. The Commandments suggest that whatever is human is an enemy, that whatever is animal is a friend, and that all animals are equal. The first indication that all are not equal, however, occurs when the pigs set themselves up as the leaders and take for themselves, the milk. Napoleon trains young puppies, which he took from their mother at birth, to grow into fierce mean enforcers. Napoleon then later uses these enforcers to get rid of Snowball so he alone can dictate the farm. Then we have Squealer, another pig who convinces the animals that the pigs deserve certain special privileges because they work harder than the rest of the animals.
Soon Napoleon comes into agreement to trade with the humans although they had a commandment saying that humans were the enemy. Napoleon also finally wants to build the windmill, after getting rid of Snowball, and claims that the windmill idea was his in the first place and that Snowball stole the idea. Napoleon then, with the help from his dogs and Squealer, works the animals on the farm harder than Jones did. The pigs engage in the same kinds of vices, such as drinking and greed, of which Mr. Jones was guilty; and in general Napoleon rules the animals even more harshly than Jones before