Israel's Expansion Into Lebanon: The Veto On U.S.-Iran Deal by Other Means
Following the escalation of Israel-Hezbollah fighting, Iran threatened to end peace deal talks if Israel wasn’t reined in and stopped its attack on Hezbollah.
Today, President Trump apparently brokered a new ceasefire agreement between Hezbollah and Netanyahu.
It’s unclear whether talks will resume, but that this development took place is not surprising at all.
Recall that last week this newsletter argued that whatever the formula of an interim agreement with Iran, Israel would get a say, and that it could impose a veto either directly or indirectly.
The direct route, openly objecting to a deal the United States wants, is politically costly, because it casts Israel as the obstacle to a peace the American president is trying to claim.
The indirect route is now visible.
Israel is expanding the war in Lebanon, and in doing so it is making the Iran negotiation steadily harder to complete.
As of today, June 1, the escalation is unmistakable.
Prime Minister Netanyahu and Defense Minister Israel Katz issued a joint statement ordering the military to strike Hezbollah targets in the Dahiyeh district of Beirut, the group’s southern-suburb stronghold that had been largely spared from major attacks in recent months.
The statement cited “repeated violations of the ceasefire in Lebanon by the terrorist organization Hezbollah and the attacks on our cities and citizens.”
This came a day after Israeli ground forces reached their deepest point in Lebanon in 26 years, crossing the Litani River and advancing toward Nabatieh, one of the largest cities in the south.
On May 31, Katz announced that Israeli forces had retaken the summit of Beaufort Castle and raised the Israeli and Golani brigade flags over it, declaring that his instruction was to “deepen and expand our hold on places that were under Hezbollah’s control.”
The Israeli military said Hezbollah had fired more than 300 projectiles at Israeli soldiers and at northern Israel, including the outskirts of Haifa, over the weekend.
This piece argues that the expansion is not retaliation to ceasefire violations from Hezbollah.
It is a deliberate and bigger strategy: by widening the Lebanon war rather than simply hitting back within the ceasefire framework, Israel is forcing Iran toward an impossible choice and, through that choice, exercising an indirect veto over the very Iran deal the United States is trying to close.
Who Broke It First Is the Wrong Question
The nominal Israel - Hezbollah ceasefire has been in place since April 16.
It is now shattered, and the question of who broke it first is genuinely difficult to answer, which is part of the point.
Both sides have violated it, repeatedly.
Hezbollah has fired projectiles at Israeli forces and into northern Israel.
Israel has continued strikes and never fully withdrew, still occupying five points along the border.
The earlier 2024 ceasefire accumulated more than 2,000 alleged Israeli violations alongside documented Hezbollah movements south of the Litani.
Disentangling the precise sequence of who fired first in any given exchange is close to impossible, and any party seeking a pretext can find one in the other’s conduct.
What is clear however, is the asymmetry in response.
Hezbollah has been using first-person-view drones with real effectiveness, targeting Israeli soldiers and even Iron Dome batteries.
The capabilities that have made the Ukrainian battlefield so lethal, where FPV drones now account for the overwhelming majority (reportedly, up to 90%) of casualties inflicted on Russian forces, are reaching Hezbollah.
This is the hard-power dimension of the story, and it matters: Hezbollah is adapting to the new warfare, absorbing the lessons of Ukraine, and imposing costs on Israeli ground forces in ways it could not in the 2024 war.
The decisive observation here is what Israel has chosen to do in response.
Faced with Hezbollah’s violations and its drone campaign, Israel had a choice.
It could have retaliated within the ceasefire, striking back to impose costs (and strike/interdict Hezbollah’s FPV supply-chain) while keeping the framework nominally intact.
That is the option a status-quo power takes when it wants to punish violations without ending the truce.
Israel has not taken it.
Instead it crossed the Litani, took Beaufort Castle, advanced on Nabatieh, and ordered strikes on Beirut’s southern suburbs, its most extensive ground operations in Lebanon in two decades.
It is using Hezbollah’s violations as a pretext to expand the war, not merely to retaliate within it.
The distinction between retaliation and expansion is crucial to understand Israel’s deeper motivations.
