This paper explores the phenomenon of Islamic State of Iraq and Syria (ISIS or IS) brides and tries to explain their role in global politics through the International Relations (IR) theories. Further, it argues that the approaches of critical securitization theory would be enriched by accommodating newer agencies into the explanatory models of IR. Historical agency considerations, the emancipation of the Islamic minorities in several countries, and deriving alternatives to the problem are much needed in the 21st century. With all such developments and the rapidly changing geopolitical dynamics, one must re-structure theories in understanding the changed geopolitics. It must answer how the nature and role of ISIS brides is critical in comprehending Middle-Eastern politics, European Islamophobia, etc. The factors mentioned above, even though considered in the traditional approaches, critical securitization theory provides an agency to them. Accordingly, the paper concludes that the critical theories are the product of decades of scientific debates and would be the priority framework to examine the international issues in future.