Why would philosophers start questioning traditional Greek values and Gods after the Peloponnesian War?

Many Athenians couldn't trust democratic government after the war.

Explanation:

Following the defeat of the Athens during Peloponnesian war in 431 BCE, the Athenian philosophers started to question the traditional Greek values and Gods simply because many of them including the majority of the Athenians couldn't trust their values such as democratic government any longer, and the trust they placed over their gods, due to crisis and loss the experienced after the war.

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no every country is held to the same degree as others just some member countries such as the usa and germany are more economically sound so the need to show there support to all others