sentences:  In 576, Khosrow I set out on what was to be his last campaign and one of his most ambitious, staging a long-range strike through the Caucasus into Anatolia, where Persian armies had not been since the time of Shapur I (r. 240–270).His attempts to attack Theodosiopolis and Caesarea were thwarted, but he managed to sack Sebasteia before withdrawing.On the way home, he was intercepted and severely defeated near Melitene by Justinian, the "magister militum" of the East; pillaging the undefended city of Melitene as they fled, his army suffered further heavy losses as they crossed the Euphrates under Byzantine attack.