The Lebanese Civil War (Arabic: الحرب الأهلية اللبنانية Al-Ḥarb al-Ahliyyah al-Libnāniyyah) was a multifaceted civil war in Lebanon, lasting from 1975 to 1990 and resulting in an estimated 120,000 fatalities. Today approximately 76,000 people remain displaced within Lebanon. There was also a mass exodus of almost one million people from Lebanon as a result of the war.
The Cold War had a powerful disintegrative effect on Lebanon, which was closely linked to the polarization that preceded the 1958 political crisis, since Maronites sided with the West while Left Wing and pan-Arab groups sided with Soviet aligned Arab countries.
During the course of the fighting, alliances shifted rapidly and unpredictably: by the end of the war, nearly every party had allied with and subsequently betrayed every other party at least once. Furthermore, foreign powers, such as Israel and Syria, meddled in the war and fought alongside different factions. Peace keeping forces, such as the Multinational Force in Lebanon and UNIFIL, were also stationed in Lebanon.