The Battle of Nanshan (南山の戦い Nanzan no tatakai) was one of many vicious land battles of the Russo-Japanese War. It took place on 25 May 1904 across a two-mile wide defense line across the narrowest part of the Liáodōng Peninsula, covering the approaches to Port Arthur and on the 116-meter high Nanshan Hill, the present-day Jinzhou District, north of the city center of Dalian, Liaoning, China.