After the defeat of the Persian invasion 480-479 BCE, Athens orgainsed an anti-Persian league amongst the Greek city states of the Aegean and Asia Minor. The states could contribute warships or money. Most took the easy way out and paid. These funds paid for the manning of the Athenian navy, which made Athens the dominant sea power, and also gave it the capacity to extract city cash contributions to pay for the navy. This amphibious power gave it the capability to threaten all city states located near the sea, which most were. The anti-Persian league therefore transitioned into an Athenian empire. The other factor was that Athens built the 'Long Walls' from the city to its port of Piraeos. This meant that they had secure access from the city to the port, and could both continue naval operations and also import food if the city was invested.
Athens had a strong navy, while Sparta had a better army
Athens always had a strong navy and they have benefitted their navy because of it's power.
When Athens used its navy to good effect during the 27-year Peloponnesian War, Sparta realised that it had to get the Peloponnesian league an equally strong nave to succeed. They took money from Persia to build a fleet which finally destroyed the Athenian navy and led to Athens' surrender.
athens
Sparta beat Athens with the help of the Persians. The Spartans sold land in Asia Minor so that they could build a navy with that navy they crushed Athens' navy and Athens surrendered.
because Sparta didn't have things that Athens had like, most of it was grain came from the lands surrounding the black sea so the Sparta had built its own strong navy.
When Athens used its navy to good effect during the 27-year Peloponnesian War, Sparta realised that it had to get the Peloponnesian league an equally strong nave to succeed. They took money from Persia to build a fleet which finally destroyed the Athenian navy and led to Athens' surrender.
athens was successful because of its military and its government both were strong
A navy is not on land, so neither had the best navy.
Athens had a powerful navy.
athens
Themistocles.