This article examines Intercommunal Violence in the Greater Pibor Area: Murle-Nuer-Dinka Cycles of Retaliation: Lessons from the COVID-19 Pandemic with a focused emphasis on Niger within the field of Medicine. It is structured as a systematic literature review that organises the problem, the strongest verified scholarship, and the main analytical implications in a concise publication-ready format. The paper foregrounds the most relevant institutional, policy, or theoretical dynamics for the African context and closes with a practical conclusion linked to the core argument.