Why was a strong navy important to the Delian League in the Peloponnesian War?

The island Delos was the capital of the Delian League.
A navy could cut off Sparta from mainland Greece.
Many islands made up the territories of the Delian League.
The Peloponnesian League could only attack Athens by sea.

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Respuesta :

Answer: The island Delos was the capital of the Delian League. A navy could cut off Sparta from mainland Greece. ... The Peloponnesian League could only attack Athens by sea.

Explanation:

Answer:

C-Many islands made up the territories of the Delian League.