Okay kiddo, so in Wuping, there are some naughty people called bandits who are doing bad things like stealing, hurting people, and causing trouble in the town. The government and police officers don't like this, so they made a plan to stop the bandits from doing these bad things. They called this plan a "campaign" which means they will work together to stop the bandits.
To do this, the police officers and government officials are going to search for the bandits and catch them. They will likely send more officers to the area to patrol and look for any signs of the bandits. They may also ask people living in Wuping to help by reporting any suspicious activity or if they have seen any bandits around.
This campaign is important because the bandits are hurting people and taking things that don't belong to them. The police officers and government officials want everyone living in Wuping to feel safe and happy, so they are working together to stop the bandits from causing trouble.