Do you want to take the trouble to reword the question so it makes sense.
Presumably an analyis of the Peloponnesian War. Who did it?
Peloponnesian War happened in -431.
There were many Greek wars - what period did you have in mind? You could always try 'The Causes of the Peloponnesian War'.
This question is incoherent. If you want an answer rewrite it so that it is clear what you are talking about.
History of the Peloponnesian War.
. . . the Peloponnesian War .
The Peloponnesian war
Natural causes, disease, starvation, wounds, other trauma, same then as now.
Aggressivenes of the Athenian empire which interfered in inter-city disputes outside the empire.
Athens won the first Peloponnesian War but Sparta won the second war
Led the Peloponnesian League.
some important events of the Peloponnesian War