The first humanitarian aid convoy entered Syria’s Idlib province on Thursday after the United Nations Security Council renewed use of a border crossing from Turkey earlier this month. The Security Council voted to renew the Bab Al-Hawa crossing’s mandate for an additional six months on 11 July, preserving the only remaining aid route into Syria’s rebel-held northwest, where 4.4 million people live. Aid had stopped for more than 20 days due to the expiration of the previous UN mandate on 10 July, according to Bab Al-Hawa crossing public relations and media director Mazen Alloush. Thursday’s UN …