Wall Street Journal
Perhaps history will mark this as the week that President Obama recognized that evil unimpeded will devour everything before it. We say perhaps because with this President you never know.
President Obama said Thursday night he authorized limited air strikes against the Islamic State in Iraq and al-Sham (ISIS) to stop the Sunni jihadists from carrying out a genocide in northern Iraq. What he didn't do, but should, is make a larger U.S. military commitment against ISIS both to avert a humanitarian catastrophe and protect American security interests.
After routing Iraq's army from Mosul and most of northern Iraq in June, ISIS has grown as a military force. It captured significant war materiel, including armored U.S. Humvees, and has attracted hardened jihadist fighters from Syria and elsewhere. In addition to the sums it looted from Mosul's banks, the group has the potential to gain access to revenue from oil fields in northern Iraq.