How did the United States mobilize citizens for World War I?

The __ spread troughout southern africa below the equator during the classical era. a. assyrian empire b. bantu peoples c. axum civilization d. nubian civilization

In the mid-1800s, how did american indians often react to the us government signing treaties with tribal chiefs to establish reservations? many american indians did not accept the treaties and resisted relocating. many american indians fought for land taken away by the dawes act. many american indians bought land in oklahoma from white settlers. many american indians accepted the treaties and relocated voluntarily.

Why did some states believe they had the power to overturn federal laws?