The Hwahaeseong (환해장성) is often referred to as the 'Great Wall of Tamna' in Jeju, Korea, and was initially constructed by the Goryeo court to prevent the Sambyeolcho from entering Jeju Island, not as a defense against Mongols. This counterintuitive fact highlights how Sambyeolcho and Jang Bogo were seen as rebels from the perspective of their respective governments. Sambyeolcho rejected Goryeo's truce with the Mongols, and Jang Bogo was involved in political struggles over royal succession. The article explores how history's interpretation can shift based on perspective, questioning which side was more aligned with justice and which was more self-serving.
