Final answer:
Sparta had a powerful army and focused on military strength, while Athens had a powerful navy and introduced democracy in government. The Delian League was led by Athens, and the Peloponnesian League was led by Sparta.
Step-by-step explanation:
Each feature corresponds to a specific Greek city-state:
- Sparta: had a powerful army and focused on military strength.
- Athens: had a powerful navy and introduced the concept of democracy in government.
The Delian League was led by Athens, and the Peloponnesian League was led by Sparta.
Learn more about Greek city-states