The Irony that is given through the chosen passage is that Squealer says to the rest of the animals that they are "equal" which from what we know is not true, they believe that the rest of the animals are not smart and they even admit it and use it against them. The Irony is something that is going to get the pigs in a lot of trouble when the other animals realize what was being done to them. He also says that being a leader is not a pleaser it is true but when you do not have to lead many things it is not hard.

1. Napollen controls the animals by making them build a windmill to gain electricity to make there life's easier. They did it by giving motivational speeches.
2.He has dogs that will protect him from angry animals and this scares the rest of the animals and keeps them in place. This is something that some animals noticed to be unfair and the dogs were there to stop it.
3. He uses that excuse that if he goes Johns would would come back and this scares the animals and this lets him take control because they do not want him to come back.