idlib province. bernard smith has more from the turkish-syrian border. >> this area is deserted. it took anti-government groups three days to take this city from government forces after a stand off for three years. almost all of idlib province in northwestern syria is now under the control of this alliance that calls itself the conquest army. it includes the powerful al nusra front and. >> we tried hard to take the area. we couldn't because we weren't coordinated or appropriate. now that the group is united we took the town. >> while most of the fighters are leaving, it's the strategic significance of this city that really matters. >> it means that we can cut the government supply roads on the