Over the weekend, the Islamic State (IS) released a video of more gruesome beheadings of Egyptian men.
In retaliation, the Egyptian government increased the amount of its airstrikes against IS.
State Department Deputy Spokeswoman Marie Harf said the coalition airstrikes are killing lots of IS fighters.
"We cannot win this war by killing them. We cannot kill our way out of this war," Harf said. Harf believes the medium to long-term solution to winning the war on IS is to look for the root of what is causing these people to become radicalized.
Harf also went on to say that she believes it is happening in prisons and due to growing frustration over the lack of opportunity for jobs.