Artaxerxes again attempted to mediate in conflicts between the Greek city-states at the time of the Theban hegemony, especially the Theban–Spartan War.
He sent Philiscus of Abydos, a hyparch (vice-regent) and military commander of the Achaemenid satrap Ariobarzanes, to Delphi in order to help the Greek negotiate peace.
The objective of Philicus of Abydos was such to help broker a Common Peace between the Greek belligerents reunited at Delphi.
The negotiation collapsed when Thebes refused to return Messenia to the Spartans.

Before returning to Abydos, Philicus used Achaemenid funds to finance an army for the Spartans, suggesting that he was acting in support of the Spartans from the beginning.
With the Achaemenid financing of a new army, Sparta was able to continue the war.
Among the mercenaries whom he had recruited, Philiscus gave 2,000 to the Spartans.
He also probably provided funds to the Athenians and promised them, on behalf of the King, to help them recover the Chersonese militarily.
Both Philiscus and Ariobarzanes were made citizens of Athens, a remarkable honor suggesting important services rendered to the city-state.

During autumn of 367 BCE, first the Spartans, soon followed by the Athenians, the Arcadians, the Argives, the Eleans, the Thebans, and other Greek city-states, sent envoys to Susa in attempts to obtain the support of Achaemenid king Artaxerxes II in the Greek conflict.
The Achaemenid king proposed a new peace treaty, this time highly tilted in favour of Thebes, which required Messenia to remain independent and that the Athenian fleet to be dismantled.
This Peace proposal was rejected by most Greek parties except Thebes.

Sparta and Athens, dissatisfied with the Persian king's support of Thebes, decided to provide careful military support to the opponents of the Achaemenid king.
Athens and Sparta provided support for the revolted satraps, in particular Ariobarzanes.
Sparta sent a force to Ariobarzanes under an aging Agesilaus II, while Athens sent a force under Timotheus, which was however diverted when it became obvious that Ariobarzanes had entered frontal conflict with the Achaemenid king.
An Athenian mercenary force under Chabrias was also sent to the Egyptian Pharao Tachos, who was also fighting against the Achaemenid king.
Artaxerxes again attempted to mediate in conflicts between the Greek city-states at the time of the Theban hegemony, especially the Theban–Spartan War. He sent Philiscus of Abydos, a hyparch (vice-regent) and military commander of the Achaemenid satrap Ariobarzanes, to Delphi in order to help the Greek negotiate peace. The objective of Philicus of Abydos was such to help broker a Common Peace between the Greek belligerents reunited at Delphi. The negotiation collapsed when Thebes refused to return Messenia to the Spartans.
Before returning to Abydos, Philicus used Achaemenid funds to finance an army for the Spartans, suggesting that he was acting in support of the Spartans from the beginning. With the Achaemenid financing of a new army, Sparta was able to continue the war. Among the mercenaries whom he had recruited, Philiscus gave 2,000 to the Spartans. He also probably provided funds to the Athenians and promised them, on behalf of the King, to help them recover the Chersonese militarily. Both Philiscus and Ariobarzanes were made citizens of Athens, a remarkable honor suggesting important services rendered to the city-state.
During autumn of 367 BCE, first the Spartans, soon followed by the Athenians, the Arcadians, the Argives, the Eleans, the Thebans, and other Greek city-states, sent envoys to Susa in attempts to obtain the support of Achaemenid king Artaxerxes II in the Greek conflict. The Achaemenid king proposed a new peace treaty, this time highly tilted in favour of Thebes, which required Messenia to remain independent and that the Athenian fleet to be dismantled. This Peace proposal was rejected by most Greek parties except Thebes.
Sparta and Athens, dissatisfied with the Persian king's support of Thebes, decided to provide careful military support to the opponents of the Achaemenid king. Athens and Sparta provided support for the revolted satraps, in particular Ariobarzanes. Sparta sent a force to Ariobarzanes under an aging Agesilaus II, while Athens sent a force under Timotheus, which was however diverted when it became obvious that Ariobarzanes had entered frontal conflict with the Achaemenid king. An Athenian mercenary force under Chabrias was also sent to the Egyptian Pharao Tachos, who was also fighting against the Achaemenid king.
Artaxerxes II of Persia