Al Qaeda Leader Al-Zawahiri Declares War on ISIS ‘Caliph’ Al-Baghdadi Prison Planet.com Posted on September 11, 2015 Posted in Aggregated No Comments Tagged with Featured Stories, Tile ABC News | Declaration of war will “irreconcilably” divide the two terror groups in a way the U.S. may be able to exploit, experts say. 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