Syrian forces on the offensive against rebels positioned along a major strategic highway -- in this latest video posted to the internet whose content Reuters cannot independently verify.<br/> <br />The road links Damascus -- still the seat of power for the military.<br/> <br />Diplomats say Syrian authorities have identified the road as the preferred route to transport chemical agents under a U.S.-Russian accord to eliminate them from the country.<br/> <br />One man explains that government forces are preparing to storm Qara and Qalamoun.<br/> <br />Stretching along the Lebanese border, the Qalamoun region is believed to the next major front in the battle for Syria.