<Table> <Tr> <Td> </Td> <Td> This article includes a list of references, but its sources remain unclear because it has insufficient inline citations . Please help to improve this article by introducing more precise citations. (April 2011) (Learn how and when to remove this template message) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This article includes a list of references, but its sources remain unclear because it has insufficient inline citations . Please help to improve this article by introducing more precise citations. (April 2011) (Learn how and when to remove this template message) </Td> </Tr> <Table> <Tr> <Th_colspan="2"> Peloponnesian War </Th> </Tr> <Tr> <Td_colspan="2"> The Peloponnesian war alliances at 431 BC . Orange: Athenian Empire and Allies; Green: Spartan Confederacy </Td> </Tr> <Tr> <Td_colspan="2"> <Table> <Tr> <Th> Date </Th> <Td> 431--April 25, 404 BC </Td> </Tr> <Tr> <Th> Location </Th> <Td> Mainland Greece, Asia Minor, Sicily </Td> </Tr> <Tr> <Th> Result </Th> <Td> Peloponnesian League victory </Td> </Tr> <Tr> <Th> Territorial changes </Th> <Td> Dissolution of the Delian League, Spartan hegemony over Athens and its allies </Td> </Tr> </Table> </Td> </Tr> <Tr> <Th_colspan="2"> Belligerents </Th> </Tr> <Tr> <Td> Delian League (led by Athens) </Td> <Td> Peloponnesian League (led by Sparta) Supported by: Achaemenid Empire </Td> </Tr> <Tr> <Th_colspan="2"> Commanders and leaders </Th> </Tr> <Tr> <Td> Pericles Cleon † Nicias Alcibiades Demosthenes </Td> <Td> Archidamus II Brasidas † Lysander Alcibiades </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Peloponnesian War </Th> </Tr>

Who held the advantage during the peloponnesian war
find me the text answering this question