You've heard this called an Israeli-Lebanese war. It never was one: Israel and Lebanon have no border dispute and no real quarrel. The wars on this front were never about Lebanon at all. They were about who kept seizing it: first the PLO (the Palestine Liberation Organization), then Hezbollah, turning a weak neighbour's south into a firing line aimed at the Galilee.
This is the front the propaganda loves, because the timeline is rarely shown. Israel has no claim on Lebanese land, made peace gestures, and withdrew twice, once in 1985 and completely in 2000, a pullback the UN itself certified to the last inch. And still the rockets came. The reason is simple: two foreign-backed militias, the PLO and then Iran's Hezbollah, built states-within-the-state in the south and used it to attack Israel, whatever Beirut wanted.
The first launchpad. Expelled from Jordan, the PLO rebuilt in south Lebanon and turned it into a base for cross-border massacre. Every Israeli move north was a response. The history they skip →
1968–69 · The Cairo Agreement
Palestinian fighters move into south Lebanon and clash with the Lebanese army. The 1969 Cairo Agreement, brokered by Nasser, hands the PLO the refugee camps and the formal right to wage "armed struggle" against Israel from Lebanese soil.
1970–71 · Fatahland
Driven out of Jordan in Black September, the PLO relocates to Lebanon en masse. The south becomes "Fatahland," a state within a state: 15,000–20,000 armed fighters with their own taxes, courts and checkpoints, beyond Beirut's control, and a key trigger of Lebanon's own civil war.
11 April 1974 · Kiryat Shmona
Gunmen from Lebanon storm an apartment block in the Israeli border town and murder 18 people, eight of them children.
15 May 1974 · Ma'alot
A squad from Lebanon seizes a school full of teenagers on a field trip and murders 22 schoolchildren, wounding dozens more.
11 March 1978 · The Coastal Road
PLO fighters land by sea from Lebanon, hijack a bus and kill 38 civilians, 13 of them children. Days later Israel launches Operation Litani, pushing the PLO back from the border to the Litani river.
1981–82 · The first Lebanon war
Despite a US-brokered ceasefire, the PLO commits more than 270 documented ceasefire violations shelling the Galilee and emptying its towns. After the shooting of Israel's ambassador in London, Shlomo Argov, by the Abu Nidal Organization, a PLO rival faction Arafat had expelled, Israel launches the 1982 war and drives the PLO out; Arafat and his fighters are evacuated to Tunisia.
You've likely heard this one blamed entirely on Israel. It was not Israeli soldiers: in the chaos after the PLO's evacuation, in September 1982, the Lebanese Christian Phalange militia entered the Sabra and Shatila refugee camps and massacred hundreds of Palestinians, in revenge for the assassination of their own leader. The killers were Lebanese Phalangists. Israeli forces controlled the area, let the militia in, and failed to stop it. Israel's own Kahan Commission then investigated, found the country “indirectly responsible,” held Defence Minister Ariel Sharon personally responsible for ignoring the foreseeable danger of a revenge killing, and forced him from office. A state that investigates itself and fires its own minister over a massacre its allies committed is not a cover-up. That kind of accountability is rare in any war.
The PLO left, and Iran filled the vacuum. Out of the 1982 chaos it built its most powerful proxy yet, and Lebanon became a launchpad again, this time run by Hezbollah.
1982 onward · Hezbollah is born
Iran's Revolutionary Guard founds and arms Hezbollah, a Shia militia sworn to Israel's destruction, designated a terrorist organization in whole or in part by the United States, United Kingdom, European Union, Gulf Cooperation Council and the Arab League. In 1983 it bombs the US Marine and French barracks in Beirut, killing 300. It is one of the first suicide bombings, a tactic other groups later copy across the region. Iran's ring of fire →
1985 & 2000 · Israel withdraws, twice
Israel pulls back to a narrow security zone in 1985, then in May 2000 withdraws from Lebanon entirely. The UN certifies the pullback to the internationally drawn Blue Line: Israel holds not one inch of Lebanon. There was no more "occupation" left to blame. The attacks kept coming anyway.
12 July 2006 · The Second Lebanon War
With no Israeli soldier on Lebanese soil, Hezbollah crosses the border, kills eight Israeli soldiers and kidnaps two, and starts a 34-day war, raining nearly 4,000 rockets on northern Israel. UN Resolution 1701 ends it and orders Hezbollah to disarm south of the Litani. It never does.
2006–2023 · The build-up
Shielded by the ceasefire, Hezbollah amasses an arsenal of over 150,000 rockets and missiles, embedded inside south Lebanon's villages, more firepower than most national armies, all of it pointed at Israel.
8 October 2023 · The second front
The day after Hamas's October 7 massacre, Hezbollah opens fire across the border in support, emptying Israel's north and displacing tens of thousands on both sides for a year.
2024 · The reckoning
Israel strikes back hard: the exploding-pager operation, the killing of Hezbollah's leader Hassan Nasrallah, and a ground campaign that destroys much of the group's command structure. A ceasefire in late November 2024 again calls for Hezbollah to pull back beyond the Litani.
The militias are only the latest chapter. The longer story is how the Middle East's only Christian-led state came apart.
1920–1943 · A Christian homeland
France carved out "Greater Lebanon" as a refuge for the region's Christians, and the one Arab state they would lead. The last census ever taken, in 1932, found a Christian majority of about 54%. The 1943 National Pact built the country on that majority: a Maronite president, from the Maronite Catholic church, Lebanon's largest Christian community, a six-to-five Christian edge in parliament, and a cosmopolitan Beirut the world called the "Paris of the Middle East."
1943–1975 · The balance erodes
Christian emigration and higher Muslim birth rates slowly flipped the numbers. Then the PLO arrived and tipped a fragile state into the 1975–1990 civil war, fifteen years of sectarian bloodshed that killed roughly 120,000 and drove hundreds of thousands of Christians out of the country for good.
1989–1990 · Taif ends Christian rule
The Taif Agreement that ended the war rewrote the system. It stripped the Maronite president of real power and handed it to the Council of Ministers and the Sunni prime minister, and balanced parliament fifty-fifty. The Christian majority the system had guaranteed was gone.
Today · An Iranian forward base
Christians are now perhaps a third of the population (the US State Department put it at 30.5% in 2023), and the single strongest force in the land is Hezbollah, an Iranian Shia militia. Lebanon has held no census since 1932, because the answer has become too dangerous to ask. A country founded as a Christian refuge is now Tehran's frontline against Israel, while across the border Israel is the one country in the region where the Christian population has grown. What Israel builds →
The cruelest part is that Lebanon itself is a victim here. A country that was once the "Switzerland of the Middle East" has been hollowed out by foreign militias stronger than its own state, first the PLO, then an Iranian proxy that drags it into wars it never chose. Lebanese civilians, Christian, Sunni, Shia and Druze alike, pay the price for fighters who launch from their towns and hide among their homes. Israel's quarrel was never with them. It was with the gun set up in their front yard.