Ah, what a lovely question. Sparta was located about 20 miles inland from the Aegean Sea, nestled in the beautiful Peloponnese region of ancient Greece. The Spartans may not have been known for their naval prowess, but they were certainly masters of the land. Just imagine the serene olive groves and rolling hills that surrounded their city-state.
Sparta was not strong at sea, Sparta let it's allied sea friends handle those affairs.
No, Ithaca was on an island in the Adricatic Sea west of Sparta.
Sparta is in the center of the Greek peninsula, surrounded by the sea on three sides and the European continent to the north.
the Mediterranean
Both city-states of ancient Greece bought goods for their own needs. But Athens was a sea-going trading nation and Sparta was not, so Athens was by far the biggest buyer and seller of goods of the two.
Though landlocked, Sparta had a harbour. The city itself is in the valley of the River Eurotus which flows into the Gulf of Laconia, on the southern Ionian Sea with the Mediterranean Sea further to the south
Athens.
That would be Athens
Sparta by far. The Sparta's military forces dominated during their glory days, and no one stood in their path.
1 billion miles
Persians
A border... Sparta is in Greece. Troy is on the Asian side of the Aegean Sea, in modern Turkey. The most reasonable answer to this question is that they were separated by many miles and the Aegean Sea.