Lebanon was created out of the Sykes-Picot Agreement. This agreement between Britain and France reshaped the collapsed Ottoman Empire south of Turkey into the states we know today -- Lebanon, Syria and Iraq, and to some extent the Arabian Peninsula as well. For nearly 100 years, Sykes-Picot defined the region. A strong case can be made that the nation-states Sykes-Picot created are now defunct, and that what is occurring in Syria and Iraq represents the emergence of those post-British/French maps that the United States has been trying to maintain since the collapse of Franco-British power.
The Invention of Middle East Nation-States
Sykes-Picot, named for French diplomat Francois Georges-Picot and his British counterpart, Sir Mark Sykes, did two things. First, it created a British-dominated Iraq. Second, it divided the Ottoman province of Syria on a line from the Mediterranean Sea east through Mount Hermon. Everything north of this line was French. Everything south of this line was British. The French, who had been involved in the Levant since the 19th century, had allies among the region's Christians. They carved out part of Syria and created a country for them. Lacking a better name, they called it Lebanon, after the nearby mountain of the same name.
The British named the area to the west of the Jordan River after the Ottoman administrative district of Filistina, which turned into Palestine on the English tongue. However, the British had a problem. During World War I, while the British were fighting the Ottoman Turks, they had allied with a number of Arabian tribes seeking to expel the Turks. Two major tribes, hostile to each other, were the major British allies. The British had promised postwar power to both. It gave the victorious Sauds the right to rule Arabia -- hence Saudi Arabia. The other tribe, the Hashemites, had already been given the newly invented Iraqi monarchy and, outside of Arabia, a narrow strip of arable ground to the east of the Jordan River. For lack of a better name, it was called Trans-Jordan, or the other side of the Jordan. In due course the "trans" was dropped and it became Jordan.
And thus, along with Syria, five entities were created between the Mediterranean and Tigris, and between Turkey and the new nation of Saudi Arabia. This five became six after the United Nations voted to create Israel in 1947. The Sykes-Picot agreement suited European models and gave the Europeans a framework for managing the region that conformed to European administrative principles. The most important interest, the oil in Iraq and the Arabian Peninsula, was protected from the upheaval in their periphery as Turkey and Persia were undergoing upheaval. This gave the Europeans what they wanted.
What it did not do was create a framework that made a great deal of sense of the Arabs living in this region. The European model of individual rights expressed to the nation-states did not fit their cultural model. For the Arabs, the family -- not the individual -- was the fundamental unit of society. Families belonged to clans and clans to tribes, not nations. The Europeans used the concept of the nation-state to express divisions between "us" and "them." To the Arabs, this was an alien framework, which to this day still competes with religious and tribal identities.
The states the Europeans created were arbitrary, the inhabitants did not give their primary loyalty to them, and the tensions within states always went over the border to neighboring states. The British and French imposed ruling structures before the war, and then a wave of coups overthrew them after World War II. Syria and Iraq became pro-Soviet states while Israel, Jordan and the Arabians became pro-American, and monarchies and dictatorships ruled over most of the Arab countries. These authoritarian regimes held the countries together.
Reality Overcomes Cartography
It was Lebanon that came apart first. Lebanon was a pure invention carved out of Syria. As long as the Christians for whom Paris created Lebanon remained the dominant group, it worked, although the Christians themselves were divided into warring clans. But after World War II, the demographics changed, and the Shiite population increased. Compounding this was the movement of Palestinians into Lebanon in 1948. Lebanon thus became a container for competing clans. Although the clans were of different religions, this did not define the situation. Multiple clans in many of these religious groupings fought each other and allied with other religions.
Moreover, Lebanon's issues were not confined to Lebanon. The line dividing Lebanon from Syria was an arbitrary boundary drawn by the French. Syria and Lebanon were not one country, but the newly created Lebanon was not one country, either. In 1976 Syria -- or more precisely, the Alawite dictatorship in Damascus -- invaded Lebanon. Its intent was to destroy the Palestinians, and their main ally was a Christian clan. The Syrian invasion set off a civil war that was already flaring up and that lasted until 1990.
Lebanon was divided into various areas controlled by various clans. The clans evolved. The dominant Shiite clan was built around Nabi Berri. Later, Iran sponsored another faction, Hezbollah. Each religious faction had multiple clans, and within the clans there were multiple competitors for power. From the outside it appeared to be strictly a religious war, but that was an incomplete view. It was a competition among clans for money, security, revenge and power. And religion played a role, but alliances crossed religious lines frequently.