http://www.haaretz.com/hasen/spages/740251.htmlIsrael has said that one of the objects of its offensive in Lebanon is to
eliminate Hezbollah leaders.
The IDF warned south Lebanon residents ahead of the strike to leave their homes and evacuate toward the north.
Hundreds of thousands of south Lebanon residents were expected to evacuate the area. The IDF broadcast its warning from an Arabic-language radio station in Israel.
from another Israeli newspaper
Israeli leaflets call on South Lebanese Wednesday night, July 19, to evacuate territory south of Litani River
They are saying
Hizballah strongholds and launching sites, and include several cross-border raids into Syria in pursuit of fleeing Hizballah terrorists and for the interception of incoming groups. Weapons convoys destined for Hizballah are also being struck on the Syrian side of the border. To conceal the extent of their losses, Hizballah has instructed its people not to hold burials.
so they are crossing over into Syria... to stop convoys ...