The Battle to Free Mosul From ISIS Has Begun. It Won't Be Easy

Iraqi forces launched a highly-anticipated operation on Monday to reclaim the city of Mosul from ISIS, marking a critical turning point in the international campaign to roust the jihadist group from its strongholds in Iraq and Syria, but raising fears for the city's population during what could be a long and bloody battle. Mosul is both a strategic and symbolic center in the fight against ISIS.