"Siege of Shushtar" . . . . . . . . "Siege of Shushtar" . . . "Rashidun Caliphate" . . . . . . . . "Sasanian Empire" . "Rashidun victory" . . "*Asawira" . "Heavy" . "Shushtar" . "siege of Shushtar" . . . . "fall of Shushtar" . . . "*Asawira(defected)" . .