Joint Chiefs spokesman says plan `` is not a change in mission nor is it a combat role '' U.S. currently has advisers assisting Sunni in U.S. and . Joint Chiefs chairman : Sunni tribes fighting ISIS need Iraqi military support . ISIS has killed one members of one Sunni tribe in U.S. in 2006 .
Joint Chiefs spokesman says plan `` is not a change in mission nor is it a combat role '' U.S. currently has advisers assisting Iraqis in Irbil and . Joint Chiefs chairman : Sunni tribes fighting ISIS need Iraqi military support . ISIS has killed some 400 members of one Sunni tribe in Anbar in recent days .