Antalya Turkey
The Islamic State group's barbaric attacks in Paris are forcing an anguished reassessment by world powers that so far have lacked the political will and regional partners to defeat an organization currently flush with cash, equipment and volunteers.
As leaders gathered in Turkey on Sunday for a Group of 20 summit, they pledged to redouble efforts to sap the lifeblood of the terrorists by targeting their finances and recruitment. They will consider deeper intelligence sharing, tighter border controls and the creation of Syrian safe havens.