What marked a end to the pesopianic war

Why was the battle of gaugamela an important turning point in alexanders conquest of persians empire

Here’s the first one let me send the next page of the passage

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.