Who does Napoleon accuse of being a traitor after the battle of the cowshed?

Napoleon accuses Snowball of being a traitor after the Battle of the Cowshed because he uses Snowball as a scapegoat to consolidate his power. After the battle, which is a crucial event for the animals as they defend their farm, Snowball is portrayed as having been in league with humans, specifically the farmer, Mr. Jones. By labeling Snowball as a traitor, Napoleon attempts to divert attention from his own leadership failures and rally the other animals against a common enemy. This accusation serves to amplify Napoleon's control over the farm and justify his increasingly authoritarian regime, as he uses fear to suppress dissent and manipulate the other animals into believing that they must remain loyal to him to ensure their safety. The focus on Snowball as the true enemy exemplifies the theme of propaganda and manipulation within the narrative.