The largest Native American force of warriors ever assembled is estimated to be between 4,000 and 5,000 people, a small number compared to the encroaching force of Manifest Destiny. A gathering of 1,500 North American Native American warriors is considered a sizable force.
The Union Army's treatment of the Apache chief Mangus Colorado and their lack of trustworthiness in peace talks may have sparked the Apache Wars. Meanwhile, the Civil War in the east allowed for the Chiricahua Apache to raid Union supplies but their retreat tactics allowed them to disappear in the desert.
The Battle of the Sabis River was fought by Julius Caesar and his Roman troops against the Nervii tribesmen who charged out of the woods with a massive force of around 50-75,000 at full running speed, in an attempt to eliminate the Roman army.
This podcast episode discusses the conflict between the Creek Nation, an indigenous people in the southeastern United States, and the Jackson administration, with James Madison favoring peaceful relations with the Creek Nation but Jackson taking a more hostile approach.
The establishment of Yellowstone National Park in 1872 triggered a conflict between Native tribes and white settlers, leading to the forceful removal of Natives through violence, broken treaties, and starvation. Native peoples were systematically removed from national park lands and historically oppressed in other ways.