El Haddi CHEKKAL2026-06-152026-06-152026-06-15https://dspace.univ-tlemcen.dz/handle/112/26599This thesis critically analyses the ideological and linguistic strategies used by ISIS in Dabiq and Rumiyah magazines (2014–2017) to radicalise English-speaking audiences. Using a tripartite Critical Discourse Analysis approach (Fairclough, van Dijk, Wodak), the study explores multimodal narratives, identity construction, and legitimisation of violence. It proposes evidence-based counter-discourse strategies to resist extremist ideology. The findings contribute to linguistic, security, and educational policymaking.enISISDabiqRumiyahradicalisationCDAideologymultimodality