Question:  Pushing the Bear explores the lives of the Cherokee as they are forced to leave their land along what series carried out by various government authorities?
Sentence (from "National Emergency Management Agency"): The disaster management system of Korea goes back to "Buyeok" (compulsory service) in the era of the Three Kingdoms, which was succeeded by the Hyangyak in the Joseon Dynasty and then by the ‘Civil Defense Basic Law’ enacted in 1975 after independence.
Relevant evidence: No