Islamist extremists are individuals or groups who interpret Islam in a radical way, often advocating for the use of violence to achieve their political or religious goals. They believe that their actions are justified by their interpretation of Islamic teachings, which can lead to acts of terrorism and conflict. These extremists often seek to establish a society governed by their strict interpretation of Sharia law, rejecting modern political systems and promoting a return to what they consider traditional values. Their actions can create significant challenges for global security and contribute to tensions within and between communities.