The Blitzkrieg tactic, which was the usage of overwhelming air power allowed the Germans to acquire territory quickly and intimidate their enemies. The use of the lighting war on Great Britain, for instance, was ultimately unsuccessful.
Answer:
The Roman Republic was an unequal system where Patricians(the elite) had special rights and power for most of the Republican existence, whereas other people living in Rome were divided between free Roman citizens, non-citizens who had reduced rights, and slaves who has no rights.
The Roman Empire was an empire ruled by emperors that controlled parts of the Mediterranean as well as parts of Asia and Africa, during their rule, Rome was one of the most powerful cities in the world.
It would be the "Necessary and Proper Clause" that establishes many implied powers of Congress, since this allows Congress to do whatever is "necessary and proper" to keep the United States functioning.
