Columbia International Affairs Online: Policy Briefs

CIAO DATE: 01/2014

The Korean Dispute over the Northern Limit Line: Economics, International Law, and Security

Terence Roehrig

December 2013

Belfer Center for Science and International Affairs, Harvard University

Abstract

Security on the Korean Peninsula often focuses on North Korea's nuclear weapons and ballistic missiles along with deterrence along the demilitarized zone. Yet an equally likely candidate for starting a conflict is a disputed maritime boundary called the Northern Limit Line (NLL) drawn in the Yellow Sea (West Sea). Indeed, since 1999, there have been numerous clashes along the NLL, most notably in 2010 with the sinking of the ROKS Cheonan and shelling of Yeonpyeong island, that have come close to sparking a broader conflagration. This seminar examined the roots of the dispute, the economic, international law, and security dimensions of the issue and explores possible solutions to the problem.