Taking advantage of a moment of weakness for the Achaemenid Empire due to riots in some satrapies in Asia Minor, Teos sought assistance from both the octogenarian king Agesilaus II of Sparta and the Athenian general Chabrias, including a number of mercenaries and 200 triremes, from Greece.

[7] However, to finance such an expedition, Teos had to impose new taxes and to expropriate the goods of the temples, destroying the delicate balance artfully established by his father Nectanebo.

Teos placed himself in the supreme command of the expedition (the position claimed by Agesilaus) leaving his brother Tjahapimu, the father of Nakhthorheb, in Egypt as his regent.

Nakhthorheb persuaded Agesilaus to join his side by taking advantage of the several disagreements that had arisen between the Spartan king and the pharaoh.

Nakhthorheb was acclaimed pharaoh – better known today as Nectanebo II – and the betrayed Teos had no alternative but to flee to Susa, the court of his enemies.