The Northern Limit Line (NLL) is a maritime boundary in the Yellow Sea, established by the United Nations Command after the Korean War. It serves as a de facto border between North and South Korea, primarily to regulate fishing rights and military activities in the area. The NLL has been a point of contention, leading to various naval skirmishes and diplomatic tensions. Understanding the NLL is crucial for grasping the complexities of inter-Korean relations and regional security dynamics. Its significance extends beyond mere geography, symbolizing the ongoing conflict and the quest for peace in the Korean Peninsula.