How did Napoleon deal with opposition on the farm after Snowball’s expulsion?

Napoleon dealt with opposition on the farm after Snowball's expulsion primarily through intimidation. This approach involved using fear tactics to suppress dissent and maintain control over the other animals. He enlisted the help of the dogs, which he had raised and trained to be loyal to him, to threaten, chase, and even attack any animals that seemed to oppose his rule or question his authority. This method not only eliminated immediate threats to his power but also instilled a deep-seated fear among the animals, discouraging them from voicing any opposition in the future. By creating an atmosphere of fear, Napoleon ensured that he could dominate the farm without significant challenge.