Battle of Kurikara
1183 CE.
Shown on the map at 36.662°, 136.821°.
The battle of Kurikara Pass (倶利伽羅峠の戦い, Kurikara tōge no tatakai), also known as the battle of Tonamiyama (砺波山), was a crucial engagement in Japan's Genpei War; in this battle the tide of the war turned in the favour of the Minamoto clan. "Yoshinaka won by a clever strategy; under cover of nightfall his troops enveloped the main body of the Taira, demoralized them by a series of tactical surprises, and turned their confusion into a disastrous, headlong rout."
Text from the Wikipedia article Battle of Kurikara Pass, licensed CC BY-SA 4.0.