1: However , it is encouraging that both Shia and Sunni fighters are supporting the army in its effort to defeat ISIS . 2: Politically , these groups may not see eye-to-eye and of course there remain deep ethno-sectarian tensions in Iraq and beyond , but regardless of these differences they all view ISIS as a common threat and enemy that must be defeated . 3: Both Shia and Sunni groups view ISIS as a common threat and enemy that must be defeated , he adds .
1: both Shia and Sunni fighters 2: these groups 3: Both Shia and Sunni groups