Lebanon is a multicultural country with a diverse government, but hamstrung by invasion from Syrians, Hezbollah, PLO, and Israel. Leganon has been racked by civil war. Reagan and US abandoned Beirut and Lebanon in 1985 after the Marine barracks bombing. Iran used Hezbollah as a proxy in Lebanon. Syria and Lebanon have been at odds until the recent Syrian revolution. Despite declaring Hezbollah illegal, the weak government has not been able to regain control of Beirut until recently. The President currently is a Maronite Christian - the President of Lebanon must be a Christian. PM Nawaf Salam is Sunni. The people and government officials are well-educated, but their ability to enforce peace without US or UN support is limited.
The Lebanese government would be happy to be rid of Hezbollah, Syrians, and Israelis who have occupied their land and caused great destruction for decades.