The latest

Israeli intelligence had tracked Hassan Nasrallah’s movements, routines and underground facilities for years when information indicated he might soon leave for a harder-to-target site, officers involved in the operation disclosed. That assessment accelerated the decision to strike his bunker in Beirut’s Dahieh district on September 27, 2024. The Israeli military said more than 80 tons of bombs hit the complex, killing Hezbollah’s secretary-general alongside several senior figures.

Details

• Surveillance architecture: Military Intelligence and Unit 8200 focused not only on locating Nasrallah but on understanding how he moved, where he worked and which underground position he was likely to use. “We knew where he was every minute,” one officer said. Collection intensified after the October 7, 2023, Hamas attack and Hezbollah’s opening of the northern front the next day.
• Operational role: Nasrallah remained central to political and military decisions covering Hezbollah’s force structure, missile capabilities and deployment of the elite Radwan Force. Israeli intelligence assessed that he had become increasingly dependent on familiar locations and routines, even as Israel expanded attacks on the organization’s senior leadership.
• Pager shock: In September 2024, thousands of communication devices used by Hezbollah operatives exploded simultaneously, disrupting internal communications and generating uncertainty over personnel, networks and security procedures. Officers said Israel had debated when to activate the operation because delay risked discovery of the compromised devices. Nasrallah nevertheless stayed in place rather than moving as Israeli intelligence expected.
• Decision window: New information suggested Nasrallah could shift to another bunker that might be more difficult to attack. The targeting team moved the intelligence through the chain of command while updating the operational picture. Senior military and political officials then held hours of discussions before approving the strike.
• Timing stakes: Officers said the central concern in the final hours was not whether the Air Force could carry out the attack, but whether political approval would arrive before Nasrallah disappeared. That calculation fixed the timing and converted years of signals intelligence, human intelligence and bunker mapping into a single operational opportunity.
• Leadership aftermath: Nasrallah’s death ended more than three decades of leadership and removed a prominent figure in Iran’s regional network. Hezbollah retained a functioning organization, continued operations and rapidly appointed new leadership. Later Israeli reporting described the emergence of a more secretive command structure after the loss of senior figures.

Background

The strike formed part of a broader Israeli campaign against Hezbollah’s military infrastructure and leadership after months of cross-border fighting displaced communities on both sides of the Israel-Lebanon border. Israeli reporting described the bunker as being beneath residential buildings and detailed efforts to map its structure and access points.

What’s next

The next indicator will be Hezbollah’s ability to preserve centralized command through its newer, more secretive leadership structure after Nasrallah’s death and Israel’s strikes on other senior commanders.