Syria has threatened to attack rebels holding up in Lebanon. Just another step toward a regional Sunni-Shiite war. Meanwhile, Iran is stepping up its supply of weapons to Syrian President Assad. From the latter article:
Iranian weapons continue to pour into Syria from Iraq but also increasingly along other routes, including via Turkey and Lebanon, in violation of a U.N. arms embargo on Iran, Western officials told Reuters on condition of anonymity. Iraqi and Turkish officials denied the allegations.
Iran's acceleration of support for Assad suggests the Syrian war is entering a new phase in which Iran may be trying to end the battlefield stalemate by redoubling its commitment to Assad and offering Syria's increasingly isolated government a crucial lifeline, the envoys said.
It also highlights the growing sectarian nature of the conflict, diplomats say, with Iranian arms flowing to the Shi'ite militant group Hezbollah. That group is increasingly active on the ground in Syria in support of Assad's forces, envoys say.