The basic cause of the peloponisian war was

The basic cause of Peloponnese war was that Sparta was jealous of the rising wealth of the Athens. The jealousy kept on increasing and it made the war inevitable.

Explanation:

The basic cause of the Peloponnese war was that Sparta was jealous if the rising wealth and influence of Athens. Sparta felt threatened that their stature and glory was diminishing.

Athens, indulging in its rising power and wealth, started bullying its allies and enemies. Athens increasing wealth got to its head. It started causing great troubles within.