The Islamic State (hereafter IS)/Islamic State of Iraq and Syria (ISIS)/Daesh is a transnational terrorist organisation which is based on the ideology of fundamentalism and Salafism teachings of Islam towards the creation and establishment of the Caliphate. From IS’s emergence in 2014 to its eclipse by the beginning of 2019, the IS remained a renowned terrorist organisation for its mass of foreign terrorist fighters from every corner of the world and its modus operandi.