Israel's chief of the general staff, Lieutenant General Eyal Zamir, has approved plans to "advance the targeted ground operations and strikes" against Hezbollah in Lebanon, the Israeli military announced Sunday. The statement described the coming operation as "prolonged."
Israel's Defense Minister Israel Katz separately ordered Israeli forces to destroy the crossings over the Litani River that were being used by Hezbollah to move reinforcements south. An Israeli airstrike then damaged the Qasmiye bridge — one of the main routes linking southern Lebanon to the center of the country, near the coastal city of Tyre.
Lebanon's President Joseph Aoun called the bridge strike a "prelude to a ground invasion" and "a policy of collective punishment against civilians." Lebanon's health ministry reports more than 1,000 people killed in Lebanon since Israel intensified its campaign, including at least 118 children and 40 health workers. More than one million people have been displaced.
To understand what Israel is doing — and what "buffer zone" means in practice — you need to know the history of the Litani River and what has happened every previous time Israel has moved ground forces into Lebanon.
The Litani River: Israel's Historical Red Line
The Litani River runs roughly east to west across southern Lebanon, approximately 25–30 kilometers (15–19 miles) north of the Israel-Lebanon border. It has been a geographic reference point in Israeli security doctrine since at least the 1970s, when Israeli military planners identified the river as the natural boundary for a southern Lebanon security zone that would push Palestinian and later Hezbollah rocket capabilities out of range of northern Israeli communities.
The logic is straightforward: most short-range rockets — including the Katyusha systems used in earlier conflicts and the more modern 122mm rockets Hezbollah has fired during the current campaign — have ranges of approximately 20–40 kilometers. A force positioned south of the Litani would be within range of Haifa, Nahariya, and other northern Israeli cities. A force pushed north of the Litani would lose easy targeting range for those cities, though longer-range systems (which Hezbollah also possesses) would still be capable.
Israel operated a "security zone" in southern Lebanon continuously from 1985 until its unilateral withdrawal in May 2000. At its maximum extent, the security zone encompassed approximately 850 square kilometers of Lebanese territory and was administered with the help of the South Lebanon Army (SLA), a Lebanese proxy force. The occupation cost Israel significant casualties over 15 years — an average of approximately 20–25 Israeli soldiers killed per year — and ultimately ended when Prime Minister Ehud Barak withdrew Israeli forces, concluding that the cost-benefit calculation had turned negative.
Hezbollah, which had built its reputation fighting the Israeli occupation, claimed the withdrawal as a historic victory. Its prestige and recruitment surged. Within six years, the 2006 Lebanon War broke out.
The 2006 War: The Last Major Ground Operation
The Second Lebanon War (July–August 2006) is the most recent large-scale Israeli ground operation in Lebanon and the most directly relevant precedent for what is being discussed now.
The war began after Hezbollah crossed the border, killed three Israeli soldiers, and captured two others in a raid on July 12, 2006. Israel responded with airstrikes and eventually a ground invasion into southern Lebanon. The stated objectives included recovering the captured soldiers, pushing Hezbollah back from the border, and destroying its rocket infrastructure.
The results:
- Duration: 34 days (July 12 – August 14, 2006)
- Israeli casualties: 121 soldiers killed, 44 civilians killed
- Lebanese casualties: approximately 1,191 killed (UN estimate), the majority civilians
- Displacement: approximately 1 million Lebanese displaced
- Hezbollah rockets fired into Israel: approximately 4,000
- Israeli soldiers captured: recovered in a 2008 prisoner exchange — as corpses
- Hezbollah leadership eliminated: none of senior command
- Hezbollah rocket capability after: significantly larger than before the war, rebuilt with Iranian support
The war ended with UN Security Council Resolution 1701, which called for a ceasefire, the disarmament of Hezbollah south of the Litani, and the deployment of the Lebanese Armed Forces (LAF) and an expanded UNIFIL peacekeeping force to the south. Hezbollah did not disarm. UNIFIL deployed. The underlying conditions were not resolved.
By 2026, Hezbollah's rocket and missile arsenal had grown substantially from its 2006 levels — estimates before the current war placed total Hezbollah projectile inventory at 120,000–150,000 rockets and missiles of varying ranges.
What "Destroying the Litani Crossings" Actually Means
Israel's Defense Minister Katz ordered the destruction of bridges over the Litani "being used by Hezbollah to send reinforcements." The Qasmiye bridge — the first confirmed strike — links the south of Lebanon to the center of the country along the coastal highway near Tyre.
Destroying river crossings has a dual military purpose:
- Interdiction: It prevents Hezbollah from moving fighters, weapons, and supplies from central Lebanon to the south, degrading their ability to reinforce defensive positions ahead of an Israeli ground advance.
- Isolation: Cutting the south off from the rest of the country creates an operational environment in which Israeli ground forces can engage Hezbollah in a defined theater without constant resupply from the north.
The same tactic was used by Israel in the 2006 war — in the first 48 hours, Israeli airstrikes destroyed the Riyaq airbase, multiple Beirut airport runways, roads, and bridges throughout Lebanon to degrade Hezbollah's logistics. The difference now is that the current strikes are focused specifically on the Litani crossing zone, suggesting the operational intent is to isolate the south rather than punish the country broadly.
Lebanon's president's framing — "prelude to a ground invasion" — is consistent with the military logic. You destroy the crossings before you move forces in, to prevent resupply of the forces you're about to engage.
The civilian impact is immediate and severe. The Qasmiye bridge is not a military installation — it is the main coastal road linking Tyre and the surrounding area to Beirut. Aid convoys, evacuees, and commercial goods all use it. With more than a million people already displaced from southern Lebanon, cutting this route amplifies the humanitarian emergency significantly.
The Context: Why Now?
Israel's escalation in Lebanon is occurring simultaneously with the US-Israel air campaign against Iran and against the backdrop of Trump's five-day postponement of power plant strikes. The timing raises two interconnected questions.
Why is Israel expanding in Lebanon while US-Iran talks are underway? The Hill reported Monday that Joe Kent — the former director of the National Counterterrorism Center who resigned last week — said publicly that Israel is "undermining Trump's attempt at de-escalation in Iran." This framing reflects a genuine tension: Trump's Truth Social announcement described "very good and productive conversations" toward a "complete and total resolution," while Israel's military chief simultaneously approved expanded offensive operations in a country whose territory is controlled partly by an Iranian proxy force.
Hezbollah is Iran's most capable and geographically proximate proxy — a key piece of Iranian deterrence architecture. Any negotiated resolution to the US-Iran conflict that leaves Hezbollah intact and armed at the Litani would likely be unacceptable to Israel. Any resolution that requires Hezbollah's disarmament is something Iran would need to agree to — a significant ask during active negotiations.
The Hezbollah factor in ceasefire talks: UNSC Resolution 1701 (2006) nominally required Hezbollah's disarmament south of the Litani. It was never implemented. A new ceasefire framework that doesn't address Hezbollah's military presence would likely reproduce the same outcome — temporary cessation, followed by rebuilding, followed by the next round. Israel's current military operations may reflect a judgment that this window — with Iran under maximum military pressure — is the best opportunity in decades to fundamentally alter Hezbollah's position in southern Lebanon.
The 1978 Precedent: Operation Litani
The current focus on the Litani River echoes a specific historical operation that established Israel's strategic logic for the region.
In March 1978, following a Palestinian Liberation Organization (PLO) attack that killed 38 Israeli civilians on the coastal highway near Tel Aviv, Israel launched Operation Litani — its first large-scale invasion of Lebanon. The objectives were to push PLO forces north of the Litani River and establish a security belt.
The operation lasted approximately four months. Israel reached the Litani but did not advance to it uniformly across the front. The PLO withdrew north but was not destroyed. UNIFIL was established by UNSC Resolution 425 to fill the resulting vacuum. Israel withdrew; the PLO eventually returned. Four years later, in 1982, Israel launched a full-scale invasion — reaching Beirut itself — in what became an 18-year occupation.
The pattern: limited operation → ceasefire → unresolved underlying conditions → larger operation. The Litani has been a geographic objective or boundary in every major Israeli-Lebanese military confrontation since 1978.
What the Numbers Mean for Civilians
More than 1,000 people killed in Lebanon in the current campaign. At least 118 children. 40 health workers. Over one million displaced — in a country with a total population of approximately 5.4 million, that is roughly 1 in 5 people on the move.
Lebanon's healthcare system was already fragile before this campaign — the country has been in economic collapse since 2019, the Beirut port explosion of 2020 destroyed a significant portion of the capital's infrastructure, and the health sector has been chronically underfunded and understaffed. Strikes that have killed 40 health workers represent a direct hit on a system that was already at capacity.
UN OCHA has described the displacement as approaching the scale of a major humanitarian emergency. Aid access to southern Lebanon — already complicated by active hostilities — is now further constrained by the Qasmiye bridge strike.
What Happens Next
Israel has approved a "prolonged operation." The IDF's use of that word is significant — it signals an intent to sustain operations over weeks or months rather than conducting a short punitive campaign. The Litani bridge strikes suggest the operational phase of a ground incursion is being prepared, not merely threatened.
The critical variable is what happens in the US-Iran talks over the next five days. A deal that addresses Hezbollah's position in southern Lebanon would give Israel a diplomatic off-ramp. A deal that doesn't — or no deal at all — leaves Israel with the military operation as the primary mechanism for achieving its security objectives in the north.
History offers a clear pattern: Israeli ground operations in Lebanon tend to achieve their initial tactical objectives, generate significant casualties on both sides, produce ceasefire agreements that leave underlying conditions unresolved, and set the stage for the next round. Whether 2026 breaks that pattern depends on whether the diplomatic environment — US-Iran talks, UN Security Council engagement, potential Lebanese government cooperation — is substantively different from 1978, 1982, 1996, 2006, and every intervention in between.
The Litani River has been the line on the map in Israeli-Lebanese conflict for nearly fifty years. Israel is now destroying the bridges across it. What comes after the bridges depends on what happens in the next five days of US-Iran diplomacy — and whether Israel is willing to wait.