If terror groups are to be defeated it is national governments that will have to do so. In nations like India governments will have to call on the patriotism of citizens to fight the terrorists. In a nation like Pakistan the government will have to be persuaded to deal with those in their midst who are complicit.
Change is certain. Peace is followed by disturbances departure of evil men by their return. Such recurrences should not constitute occasions for sadness but realities for awareness so that one may be happy in the interim.