U.S.-backed Syrian rebels have been ousted from their strongholds , monitors say . Reports say moderates , pressured by family , have defected to al-Nusra . One activist said many fighters were pressured by their families to defect as al-Nusra was popular in their hometowns . Score: 6 Like ISIS , al-Nusra Front is trying to establish an Islamic state , though primarily in Syria .
U.S.-backed Syrian rebels have been ousted from their strongholds , monitors say . Reports say moderates , pressured by family , have defected to al-Nusra . Score: 6 Like ISIS , al-Nusra Front is trying to establish an Islamic state , though primarily in Syria .