"The United States and Lebanon continue to enjoy good relations. Prominent current issues between the United States and Lebanon include progress toward a Lebanon-Israel peace treaty, U.S. aid to Lebanon, and Lebanon's capacity to stop Hezbollah militia attacks on Israel. […] The assassination in February 2005 of former Lebanese Prime Minister Rafiq Hariri sparked a political crisis, realignments in Lebanon's domestic politics, and withdrawal of Syrian troops from Lebanon. Since June 2005, an independent U.N. commission has been investigating the circumstances of Hariri's assassination, amid allegations of Syrian involvement, directly or through pro-Syrian Lebanese officials. On May 30, 2007, a divided U.N. Security Council voted to establish a special tribunal outside Lebanon to try suspects in the Hariri case. Meanwhile, in late May 2007, frictions between the Lebanese Army and a splinter Palestinian faction known as Fatah al-Islam, based in a refugee camp in northern Lebanon, led to an outbreak of fighting and exacerbated already existing internal tensions. To help Prime Minister Siniora deal with current challenges, the Bush Administration requested a large increase in U.S. assistance, ultimately contained in H.R. 2206 (P.L. 110-28). Meanwhile, a radical Palestinian group mounted further challenges to the government of Prime Minister Siniora."
CRS Report for Congress, RL33509