Battle of the Yalu River

A naval battle fought on 17 September 1894 during the First Sino-Japanese War, in which Japan’s fleet defeated the Qing Beiyang Fleet.

Beiyang Fleet: The Qing Empire’s northern modern naval fleet, organized under the late Qing self-strengthening program. Its ships formed the Qing force defeated at the Yalu River.
First Sino-Japanese War: A war between Qing China and Japan from 1894 to 1895, fought chiefly over influence in Korea. The Yalu River battle was the war’s decisive naval engagement.
Battle of Pyongyang: A land battle fought on 15 September 1894 in which Japanese forces defeated Qing troops in Korea. Its near-simultaneous outcome helped clear Japan’s advance into Chinese territory.
Dingyuan: A Chinese ironclad battleship that served as the Beiyang Fleet’s flagship during the First Sino-Japanese War. Its heavy armor contrasted with the Japanese fleet’s emphasis on speed and rapid fire.
Imperial Japanese Navy: Japan’s national navy, established during the Meiji era and built around imported technology and domestic shipyards. Its fleet delivered the decisive attack at the battle.
Korean rebellion of 1894: A peasant uprising in Korea that prompted Qing and Japanese military intervention. The crisis that began the war brought both navies into the region.
Treaty of Shimonoseki: The 1895 treaty that ended the First Sino-Japanese War and imposed major concessions on Qing China. Japan’s naval dominance helped secure the terms imposed after the war.
Naniwa: A Japanese protected cruiser commissioned in 1886 and deployed in the First Sino-Japanese War. It represents the fast, modern cruiser type prominent in Japan’s battle line.
Ding Ruchang: A Qing admiral who commanded the Beiyang Fleet during the First Sino-Japanese War. His command choices shaped the Qing fleet’s formation and response.
Treaty of Tientsin: An 1885 agreement in which China and Japan pledged to withdraw troops from Korea and notify each other before future deployments. Its rules framed the competing interventions that followed the Korean rebellion.

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