The Battle of Yalu River, (Russian: Бой на реке Ялу, Boĭ na reke Yalu) (Japanese: 鴨緑江会戦, Ōryokkō Kaisen) lasted from 30 April to 1 May 1904, and was the first major land battle during the Russo-Japanese War. It was fought near Wiju (modern village of Uiju, North Korea) on the lower reaches of the Yalu River, on the border between Korea and China.