In the past month, the US and fellow coalition members have killed 10 ISIS leaders—including two linked to the deadly Paris attacks—with airstrikes in Iraq and Syria, Reuters reports. Charaffe al Mouadan was killed Dec. 24. He had a connection to the suspected leader of the Paris attacks, Abdelhamid Abaaoud. "Al Mouadan was actively planning additional attacks against the West," the Hill quotes Army spokesperson Steve Warren. A second man with connections to the Paris attacks—Abdul Qader Hakim—was killed in an airstrike Dec. 26, Reuters reports. "We're striking at the head of this snake," the Hill quotes Warren. "We have not severed the head of this snake yet, and it has still got fangs." (More Islamic State stories.)