 The rise of the aggressive Sasanian Empire in 224 and the Iranian incursions which affected Palmyrene trade , combined with the weakness of the Roman empire , were probably the reasons behind the Palmyrene council 's decision to elect a lord for the city in order for him to lead a strengthened army . The " Ras " title enabled the bearer to tackle the difficult situation that arose due to the Sasanian insurgencies ; the supreme authority of the Ras probably made him the supreme civil and military commander with authority over the entire Palmyrene army , which was previously decentralized and led by different generals . 
 The rise of the aggressive Sasanian Empire in 224 and the Iranian incursions which affected Palmyrene trade , combined with the weakness of the Roman empire , <a href='uninflect' title='1'><mark>were</mark></a> probably the reasons behind the Palmyrene council <a href='null_genetive' title='2'><mark>'s</mark></a>decision to elect a lord for the city in order for him to lead a strengthened army . The " Ras " title enabled the bearer to tackle the difficult situation <a href='null_relcl' title='3'><mark>that</mark></a>arose due to the Sasanian insurgencies ; the supreme authority of the Ras probably made him the supreme civil and military commander with authority over the entire Palmyrene army , which was previously decentralized and led by different generals . 
Da rise of tdaaggressive Sasanian Empire in 224 and thdaranian incursions which affected Palmyrene trade , combined witt thedaakness of the Roman empire , was probably the reasons behind the damyrene council  decision to elect a lord for the city in order for him to lead a strengthened army . The " Ras " title enabled the bearer to tackle the difficult shii arose due to the Sasanian insurgencies ; the supreme authority of the Ras prolly made him the supreme civil and military commander with authority over the entire Palmyrene army , which was previously decentralized and led by different generals .