Artaxerxes marched against him in person, and engaged him in two battles, the first of which was indecisive, while in the second the Bactrians suffered defeat, chiefly (according to Ctesias) because the wind blew violently in their faces.
So signal was victory, that Bactria at once submitted.

Hystaspes' fate is uncertain.
Not long after the reduction of Bactria, Egypt suddenly threw off the Persian yoke (B.C.

460).

Inarus, a king of the wild African tribes who bordered the Nile valley on the west, but himself perhaps a descendant of the old monarchs of Egypt, led the insurrection, and, in conjunction with an Egyptian, named Amyrtseus, attacked the Persian troops stationed in the country, who were commanded by Achaemenes, the satrap.

A battle was fought near Papremis in the Delta, wherein the Persians were defeated, and Achaemenes fell by the hand of Inarus himself.