What Happened to Lebanese Civil War?

The Lebanese Civil War, a complex and multifaceted armed conflict, lasted from April 13, 1975, to October 13, 1990. It was not a singular war but a series of interconnected conflicts involving numerous Lebanese sectarian militias, Palestinian armed groups, and significant interventions by regional and international powers, primarily Syria and Israel.

The war's origins were deeply rooted in Lebanon's unique confessional political system, established after independence, which allocated power based on religious demographics. Long-standing socioeconomic disparities, demographic shifts favoring Muslims over Christians, and the growing presence and activities of Palestinian armed groups, particularly the Palestine Liberation Organization (PLO), within Lebanon exacerbated internal tensions. These internal divisions were further inflamed by regional rivalries and Cold War dynamics, turning Lebanon into a proxy battleground.

Key turning points included the initial Phalangist attack on a bus carrying Palestinians in April 1975, which is widely considered the trigger for the war. Syria intervened militarily in 1976, initially to support Christian factions, but later shifting alliances to maintain its influence. Israel invaded Lebanon in 1978 and again in 1982, aiming to expel the PLO and establish a friendly government, leading to the Sabra and Shatila massacres. The conflict saw the division of Beirut into Christian East and Muslim West, marked by the 'Green Line,' and the emergence of powerful sectarian militias.

The war formally concluded with the Taif Agreement, signed in October 1989 in Saudi Arabia, which restructured the political system, shifting some presidential powers to the cabinet and ensuring parity between Christians and Muslims in parliament. It also called for the disarmament of militias and a Syrian withdrawal, though Syria maintained a military presence until 2005. The final military actions involved Syrian forces attacking General Michel Aoun's stronghold in October 1990, effectively ending the major hostilities.

The consequences of the civil war were catastrophic: an estimated 100,000 to 120,000 people were killed, nearly one million were displaced, and billions of dollars in infrastructure and property damage were sustained. The war cemented the sectarian power-sharing system, fostered a culture of impunity, and led to the rise of Hezbollah, a Shi'ite militia that remained armed after the war to resist Israeli occupation and later evolved into a significant political and military force.

As of August 27, 2026, Lebanon continues to grapple with the profound legacies of the civil war. The country faces deep political instability, a severe economic crisis that began in 2019, and persistent sectarian divisions. Hezbollah remains a powerful non-state actor, its disarmament a contentious issue. Since October 2023, the Hezbollah-Israel conflict has escalated significantly, leading to a major war in 2026. This conflict, which resumed on March 2, 2026, after a brief ceasefire in late 2024, has seen Hezbollah launch projectiles into Israel and Israel respond with extensive airstrikes across Lebanon, including Beirut, and ground operations in southern Lebanon. Israel's stated aim is to create a buffer zone up to the Litani River, and by June 2026, it controlled approximately 20% of Lebanese territory. The renewed fighting has resulted in over 4,000 Lebanese deaths and the displacement of more than 1.2 million people. The UN Interim Force in Lebanon (UNIFIL), whose mandate was terminated in September 2025, is expected to fully withdraw by 2027, further complicating security. US-brokered talks between the Lebanese and Israeli governments in April and June 2026 have sought a cessation of hostilities, but high-intensity fighting continued, with Israel conditioning withdrawal on Hezbollah's disarmament, a condition the group has rejected.