How were the Peloponnesian War and the Persian War similar?

The Persian war ended the westward expansion of Persa and laid the foundation for the later taleover of western Asia by Alexander and the establishment of Greek culture.

The Peloponnesian War was n intensified continuation of the normal conflict between the hundreds of independent city-states, but solved nothing, warfare continuing amongst varying alliances of cities after it ended with Athens demoted to a second level power. However the serious losses opened the way for the rise of Macedonia, the takeover of the persian empire, and the post-Alexander of the split of his empire into warring Hellenistic kingdoms. These kingdoms imposed a superficial Greek culture in the Middle East.