Lt. General William Mayville Jr. Briefs The Media At Pentagon On Recent Strikes Against ISIL In Syria [Getty Images]

ARLINGTON, VA - SEPTEMBER 23: Lt. Gen. William C. Mayville Jr. speaks about the bombing campaign in Syria, September 23, 2014 in Washington, DC. Mayville talked about the U.S. and Arab air strikes in Syria against the jihadist group Islamic State in Iraq and Syria (ISIS). (Photo by Mark Wilson/Getty Images)

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