Li Shiji (594–669), also named Li Ji, Chinese general of Tang dynasty
Due to the Li Ji Rebellion, a plot set up by Li Ji, the favored concubine of Duke Xian of Jin, to remove the other princes from the capital and make her own son Xiqi crown prince, Yiwu was sent to defend Erqu (二屈), modern day Ji County in Shanxi.
In spring 668, they further marched east and captured Goguryeo's major northeastern city Buyeo (扶餘, in modern Siping, Jilin), and Xue was described to have marched to the sea (probably Sea of Japan) and taking some 40 cities in Goguryeo's northeastern territories, before marching southwest to rendezvous with the supreme commander of the entire operation, Li Ji, at Pyongyang.