ELI5: Explain Like I'm 5

Peace lines

Peace lines are walls and fences that are built to separate people living in different communities. Sometimes there are disagreements between communities and people don't want to live close to each other. Building a fence or wall between them keeps them apart and makes sure that they do not fight. Peace lines can also prevent crime and violence from happening in a particular area. This way, people living in the two communities can live peacefully.
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