Three branches of government
what is the main function of the supreme court?

 Decide the outcome of cases

Explaintion: The United States Supreme Court is the highest court in the land, and one of its main duties is to decide the outcome of cases. As the Supreme Court is the highest court, all decisions and outcomes are final and a case that goes to the Supreme Court must first pass through many other courts.

answer; taking up arms to defend the nation;