A long civil war was experienced by Lebanon for 15 years.
The Lebanese Civil War ( 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 . Lebanon . Before the Lebanese Civil War ( 1975 -- 1990 ) , the country experienced a period of relative calm and renowned prosperity , driven by tourism , agriculture , commerce , and banking .