Final answer:
The United States raised an army through voluntary enlistment, the draft, and the use of militias and state-controlled troops.
Step-by-step explanation:
The United States raised an army through various methods during its history. One of the primary ways was through voluntary enlistment, where individuals would join the military out of their own free will. Another method was the draft, which was used during times of war or national emergencies to compel individuals to serve in the military. Additionally, the United States also relied on militias and state-controlled troops for defense.
Learn more about Methods of raising an army in the United States