Boko Haram and ISIL share an apocalyptic ` ` end - of - world '' ideology , writes Tim Lister . But Haram has also begun using ISIS symbolism in its propaganda productions and operations , he says . Shekau has castigated ( as has ISIS ) Lister : Whether there will be a formal alliance between them is still very much open to debate .
Boko Haram and ISIL share an apocalyptic ` ` end - of - world '' ideology , writes Tim Lister . But Haram has also begun using ISIS symbolism in its propaganda productions and operations , he says . Lister : Whether there will be a formal alliance between them is still very much open to debate .