Astyages' army betrayed him and Cyrus established himself as ruler of all the Iranic peoples, as well as the pre-Iranian Elamites and Gutians, ending the Median Empire and establishing the Achaemenid Empire. Ten years after his victory against the Medes, Cyrus invaded Babylon.
Astyages' army betrayed him, and Cyrus became the ruler of all Iranic peoples, including pre-Iranian Elamites and Gutians. This ended the Median Empire and established the Achaemenid Empire. Ten years after defeating the Medes, Cyrus invaded Babylon.