Al - Qaeda leader Ayman Al - Zawahiri announced the creation of AQIS .
Al - Qaeda leader Ayman Al - Zawahiri introduced Asim Umar as its leader in a video posted online in September 2014 .
al - Qaeda leader Ayman Al - Zawahiri announced the creation of AQIS and introduced Asim Umar as its leader in a video posted online in September 2014 .