Eastern Wu

| t = | p = Dōng Wú | w = Tung¹ Wu² | mi = | gr = Dong Wu | mps = Dūng Wú | bpmf = ㄉㄨㄥ   ㄨˊ | tp = Dong Wú | myr = Dūng Wú | y = Dūng Ng̀h | ci = | j = Dung1 Ng4 | tl = Tang Ngôo ''or'' Tong Ngôo | poj = Tang Ngô͘  ''or'' Tong Ngô͘ | showflag = p }}

| t = | p = Sūn Wú | mi = | gr = Suen Wu | w = Sun¹ Wu² | bpmf = ㄙㄨㄣ   ㄨˊ | tp = Sun Wú | myr = Swūn Wú | mps = Suēn Wú | y = Syūn Ng̀h | ci = | j = Syun1 Ng4 | showflag = p }}

Wu (Chinese: 吳; pinyin: ''Wú''; Middle Chinese *''ŋuo'' < Eastern Han Chinese: ''*ŋuɑ''), known in historiography as Eastern Wu or Sun Wu, was a dynastic state of China and one of the three major states that competed for supremacy over China during the Three Kingdoms period. It previously existed from 220 to 222 as a vassal kingdom nominally under its rival state Cao Wei but declared complete independence in November 222. It was elevated to an empire in May 229 after its founding ruler Sun Quan (Emperor Da) declared himself emperor.

The name Wu was derived from the place it was based in—the Jiangnan (Yangtze River Delta) region, which was also historically known as Wu. It was called Dong Wu ("Eastern Wu") or Sun Wu by historians to distinguish it from other Chinese historical states with similar names in that region, such as the Wu state of the Spring and Autumn period and the Wuyue kingdom of the Five Dynasties and Ten Kingdoms period. It was called Eastern Wu because it occupied most of eastern China in the Three Kingdoms period, and Sun Wu because the family name of its rulers was Sun.

During its existence, Wu's capital was sometimes at Jianye (present-day Nanjing, Jiangsu) and sometimes at Wuchang (; present-day Ezhou, Hubei). Provided by Wikipedia