Iraqi troops in Anbar province in June. It's unclear whether Sunnis will join the U.S. in the fight against the Islamic State. AFP/Getty Images hide caption itoggle caption AFP/Getty Images Iraq U.S. Call To Fight IS Stirs Some Bitter Memories President Obama wants Sunnis to join the battle against the Islamic State. But Iraqi Sunnis who helped fight al-Qaida several years ago feel abused by the Iraqi military, and now are not so eager to sign up.