Wu, also referred to as Huainan (淮南), Hongnong (弘農), Southern Wu (南吳), or Yang Wu (楊吳), was a dynastic state of China and one of the Ten Kingdoms during the Five Dynasties and Ten Kingdoms period. It existed from 907 to 937 with capital at Jiangdu Municipality.

Yangzhou is a prefecture-level city in central Jiangsu Province, East China. Sitting on the north bank of the Yangtze, it borders the provincial capital Nanjing to the southwest, Huai'an to the north, Yancheng to the northeast, Taizhou to the east, and Zhenjiang across the river to the south. Its population was 4,559,797 at the 2020 census and its urban area is home to 2,635,435 inhabitants, including three urban districts, currently in the agglomeration.