Founded back in 1988, by Osama bin Laden and Abdullah Azzam, it was a militant Sunni Islamist multi-national organization. The group is basically made up fo Islamic extremist, and Salafist jihadists. The militant group is classified as a terror group by United Nations Security Council, the European Union, the North Atlantic Treaty Organization (NATO), the United States, Russia, India, and several other countries. They are known for being responsible for the U.S. embassy bombings in 1998, the September 11 attacks, along with the 2002 Bali bombings.
ISIS or otherwise known as the Islamic State of Iraq and the Levant, are responsible for crimes like human rights abuses and war crimes, and are accused of ethnic cleansing in the northern Iraq on a “historic scale.” The group gained prominence back in 2014 by driving the Iraqi government forces out and then capturing Mosul which was followed by the Sinjar massacre. The group follows the ideologies of Salafism, Salafi jihadism along with Wahhabism.