"Rebellion! I do not know when that Rebellion will come, it might be in a week or in a hundred years, but I know, as surely as I see the straw beneath my feet, that sooner or later justice will be done."
Animal Farm begins on a regular farm where the humans work and the animals provide food. Mr. Jones, the farm's owner, is a lazy, drunk man who is crabby and mistreats his animals. The animals have all decided that the humans do not treat them right and must be overthrown. The eldest pig, Old Major, brings the animals together one night to discuss a dream he had, and to inform the animals that they must revolt.
When Old Major explains the dream he had, the animals realized that they do not have freedom all because of humans. They decided that they were going to overthrow them. Soon after this meeting, Old Major died peacefully and the animals decided to revolt immediately. They did not stop their violent acts until all the humans were off the farm and they finally had it all to themselves. However, the humans were determined to come back and conquer the animals.
At this point in the story, the humans have heard all about the Animal Farm and have come back to start a war, including Mr. Jones. Snowball was ready for this attack and had many battle strategies. Although many of the animals were wounded, they managed to fight off the humans and rejoice about their victory.
The animals had spent years building a windmill under the supervision of Napoleon, for Snowball had been chased off the farm and betrayed by the animals. This windmill would be very advanced and make their work much easier. In the Battle of the Windmill, the humans destroy the windmill with explosives and shoot many of the animals, but the animals still consider the battle their victory because they chased the humans off the farm.
Because of the windmill destruction, Boxer feels obligated to work even harder to get it done. He was nearing retirement and was becoming weaker and weaker. He eventually collapses and is sent away to the hospital. However, Napoleon sends him away to the knackers so he can get money to buy more alcohol. The animals try to stop them, but it's too late.