Choe Yeong vs Mamai

General Choe Yeong led Goryeo forces to repel the Red Turban rebels who had invaded from China. He recaptured the capital Gaegyeong after it fell to the rebels, restoring order and defending the kingdom.

Choe Yeong led successful campaigns against Japanese wokou pirates who raided Goryeo's coasts. He strengthened coastal defenses and destroyed pirate bases, reducing the threat to coastal communities.

Choe Yeong opposed General Yi Seong-gye's decision to withdraw from the Yalu River campaign against Ming China. He was captured by Yi's forces during the coup at Wihwado Island and later exiled.

After being captured and exiled, Choe Yeong was executed on orders of Yi Seong-gye. His death removed the last major obstacle to Yi's rise to power and the eventual founding of the Joseon dynasty.

Mamai sent a force under Begich to attack the Grand Principality of Moscow. Dmitry Donskoy's army defeated the Horde force on the Vozha River, marking the first major Russian victory over the Golden Horde and escalating tensions before Kulikovo.

Mamai led a large Golden Horde army against the coalition of Russian principalities under Dmitry Donskoy at Kulikovo Field. The Russian forces defeated the Horde, severely damaging Mamai's authority and prestige. Mamai fled the battlefield.

After the defeat at Kulikovo, Mamai's rival Tokhtamysh, backed by Tamerlane, challenged his rule. Mamai gathered forces but was defeated by Tokhtamysh at the Battle of the Kalka River. Mamai fled to the Genoese colony of Caffa, where he was killed.