Could the defeat of ISIS turn to Pyrrhic victory? (Al Arabiya)

The recent military setbacks suffered by ISIS in Iraq and Syria, and the beginning of attacks by local forces to retake Fallujah, Iraq and Manbij City, Syria, backed by U.S.-led coalition airstrikes, coupled with the steep decline in the number of foreign fighters flowing to Join ISIS, portends the eventual defeat of the Caliphate as a significant military threat maybe as early as 2017. But given the trajectory of the Syrian and Iraqi conflicts in recent years, the corrosive role of most outside powers, and the frightening human toll of identity politics, the defeat of the monstrous Caliphate could turn to a resounding pyrrhic victory

https://english.alarabiya.net/en/views/news/middle-east/2016/06/04/Could-the-defeat-of-ISIS-turn-to-Pyrrhic-victory-.html