Explain why the constitution created a national judiciary and describe its structure?

The Constitution established a national judiciary to ensure a uniform interpretation and application of Federal Laws across the United States, promoting fairness and consistency in legal matters. The structure of the national judiciary is outlined in Article III, which creates the Supreme Court as the highest court in the land and allows Congress to establish lower federal courts. This system includes district courts, which handle trial cases, and appellate courts, which review decisions made by the lower courts. This hierarchical structure helps to maintain a balance of power and provides a framework for addressing legal disputes at various levels.