The Washington Post: Hezbollah increases support for Syrian regime

Hezbollah, the Lebanese Shiite political and militant group, has ramped up its support for the Syrian government, sending in military advisers to aid in the bloody struggle against the opposition, U.S. and Lebanese government officials say.
The U.S. government this month accused Hezbollah of providing aid to the Syrian government, an allegation the group has denied. Any acknowledgment that it is sending help to the regime of President Bashar al-Assad risks worsening tensions in Lebanon between Hezbollah and Lebanese Sunnis who support the mostly Sunni opposition in Syria.
Hezbollah has a well-armed and trained militia that is considered the strongest fighting force in Lebanon. But the group also oversees a powerful political party and runs a number of organizations that provide social services to Shiite Muslims, its main supporters, throughout the country.