During the Civil War, Americans in the Southern states fought against Americans in the Northern States.
After the war, there were continuing problems between Indians and settlers in Arizona. Things got so bad that the U.S. government decided to move Indians onto land that had been set aside for them. Not all Indians wanted to go.
The Arizona Territory was growing quickly. Mining, farming, and ranching were important to the economy. Changes in transportation were also happening as more and more people moved to the territory.