Itūʻau County is a county in the Eastern District in American Samoa. The official name is Itūʻau ma Nofo, however, it is commonly known as just Itūʻau. It is divided into northern and southern parts by the highest part of the Tutuila's central mountain range. It is peculiar in that it had no county chief. In Nuʻuuli in the south, power was divided between village high chief Savusa and the Four Chiefly Houses of the Soliai, Tago, Levu, and Alega. In Fagasā in the north, leadership was shared by the Tupuola and the Alo. The physical division of the county by mountains combined with the lack of a high chief made the county a battleground (itu'au) in ancient times.