Gi Cheol, whose younger sister is Empress Gi of China’s Mongol Yuan dynasty, has come to threaten the position of the king of Goryeo, which is a client state of the Mongols.

Gongmin of Goryeo exterminates the Gi family in a coup in 1356.

Öljei Khutuk, the Mongolian name by which Empress Gi is known in Korean, responds by selecting Tash Temür as the new king of Goryeo and dispatches troops to Goryeo.

The Mongol troops wae defeated by the army of Goryeo while attempting to cross the Yalu River.