What is the purpose of the supremacy clause of the constitution

The “supremacy clause” is the most important guarantor of national union. It assures that the Constitution and federal laws and treaties take precedence over state law and binds all judges to adhere to that principle in their courts.

Brainliest and 5 stars plz

1. they conquered all of thier opponents

2. vietnam war was one of the worst and bloodiest wars of all time.

3. their culture.

c. the dred scott v. sandford case,