As countries across the world align themselves against the Islamic State of Iraq and Syria, many people are asking questions about ISIS and it's origins.

Brian Williams, Professor of Islamic History at UMass Dartmouth, appeared on WBSM earlier this week, answering many of those frequently asked questions.

Williams says the group is a sort of reincarnation of Sunni Islams, who were driven out of Iraq during the 2003 invasion by the United States.

Williams adds while the world is hyped up over ISIS, there are still other extremist groups to watch out for.

Williams says while the constant bombardment of airstrikes against ISIS are proving effective, there may need to be a "boots on the ground" approach. Williams says more targeted bomb strikes called in by soldiers at ground level could prove to be crippling to the ISIS movement.