The Battle of Kulikovo took place on September 8, 1380, between the forces of the Grand Duchy of Moscow and the Mongol Golden Horde. This significant battle marked a turning point in Russian history, as it was one of the first major victories against the Mongol invaders, who had dominated Russia for over two centuries. Led by Dmitry Donskoy, the Russian army faced the Mongol forces commanded by Mamai. The battle occurred near the Don River and is celebrated for its role in fostering a sense of unity among the Russian principalities, ultimately contributing to the decline of Mongol influence in the region.