The Islamic State of Iraq and Syria (ISIS) is a militant group that emerged in the early 2000s, gaining prominence during the Syrian Civil War. It aims to establish a caliphate governed by its strict interpretation of Islamic law. The group is known for its violent tactics, including terrorism and brutal enforcement of its rules in areas it controls. ISIS has been responsible for numerous attacks worldwide, targeting civilians and military forces. The group has faced significant military opposition from various countries and coalitions, including the United States and Iraqi forces, leading to a decline in its territorial control since 2017.