During Bastille Day celebrations in 2016, a terrorist drove a truck into the gathered crowds in Nice, France, resulting in the deaths of 86 people. The driver, Mohamed Lahouaiej-Bouhlel, was a Tunisian living in France and was killed by police following the attack. ISIS claimed responsibility and then French President François Hollande ordered airstrikes in retaliation on ISIS militant locations in both Syria and Iraq.

French police forces and forensic officers investigate a truck that ran into a crowd in Nice, France, on July 14, 2016.
Eric Gaillard/Reuters