Powerful militant group in Gaza allegedly pledges allegiance to ISIS Prison Planet.com Posted on September 11, 2015 Posted in Aggregated No Comments Tagged with Featured Stories, Tile Jerusalem Post | A communiqué in the name of Jaish al-Islam circulating on social media claims the group is an integral part of Islamic State in the Sinai. Share this:Share Share on Facebook (Opens in new window) Facebook Share on Reddit (Opens in new window) Reddit Share on X (Opens in new window) X Share on LinkedIn (Opens in new window) LinkedIn Email a link to a friend (Opens in new window) Email