Turkish-backed Syrian fighters prepare to load a long-range grad rocket aimed at the Kuweires military airfield and other points along the frontlines with areas held the Syrian Democratic Forces (SDF), in the district of al-Azraq in the rebel-held part in the north of Syria's Aleppo province."This is a response to the massacres targeting our civilian brethren", says an artillery and missile specialist in the Turkey-backed forces, Yousef Abu Al-Bara. as a IMAGES AND SOUNDBITES