According to French President François Hollande, the terrorist attacks in Paris —which claimed more than 120 lives — were the work of the Islamic State, better known as ISIS. The group rose to prominence in June 2014, when it seized Mosul, Iraq’s second largest city.
Watch: The origins of ISIS, explained in 3 minutes
But to understand the militant group, you have to understand where it came from — a story that really starts in the aftermath of America’s invasion of Iraq. The above video explains.

















