Greco-Bactrian Kingdom
During the time Antiochus was occupied with the war against Egypt, Andragoras, his satrap in Parthia, proclaimed independence. According to Justin's epitome of Pompeius Trogus, in Bactria, his satrap Diodotus also revolted in 255 BC, and founded the Greco-Bactrian Kingdom, which would further expand in India in 180 BC to form the Indo-Greek Kingdom (180–1 BC).