The Battle of Yashima took place in 1185 during the Genpei War, a conflict between the Minamoto and Taira clans in Japan. This naval battle occurred near the island of Yashima, where the Taira forces, led by Taira no Tomomori, were stationed. The Minamoto clan, commanded by Minamoto no Yoshitsune, launched a surprise attack, utilizing their superior tactics and naval skills. During the battle, the Minamoto forces used small boats to outmaneuver the larger Taira ships. The Taira were caught off guard, leading to significant losses. The battle marked a turning point in the Genpei War, contributing to the eventual downfall of the Taira clan and the rise of the Minamoto clan's power in Japan.