CRS – European Security, Islamist Terrorism, and Returning Fighters, November 16, 2015. “On November 13, 2015, coordinated terrorist attacks in Paris left at least 129 people dead and over 350 injured at six locations throughout the city. French President François Hollande attributed the attacks to the Islamic State terrorist organization (which subsequently claimed responsibility), and asserted that France’s response would be “merciless.” The attacks were the worst-ever terrorist incident on French soil, and the latest in a number of examples of Islamist terrorism in France and Europe over the past year and a half. (Also see CRS Insight IN10301, France: Efforts to Counter Islamist Terrorism and Radicalization.)”