Hezbollah deployed thousands of its members on the Lebanese side of the border.
Syrian troops engage rebels in mountainous region in an offensive to cut the opposition’s supply route from Lebanon.
Jihadists mistakenly behead an allied commander.
Syrian troops clashed with rebels in a mountainous western region Saturday in what appeared to be an offensive to cut an opposition supply route from Lebanon, forcing hundreds to flee for safety across the border, activists and officials said.

Hezbollah is thought to have sent thousands of operatives to Syria to fight for the Assad regime – Photo: Reuters
The fighting was concentrated in the rugged Qalamoun region around the towns of Qara, Rima and Nabak, activists and state media said.