Israeli Forces Dismantle 600+ Hezbollah Sites in Southern Lebanon Security Zone

Israeli troops from the 55th Brigade operating under the 91st Division completed a major clearing operation in the Al-Mansouri area of southern Lebanon’s security zone, dismantling over 600 terrorist infrastructure sites and eight underground tunnel networks in coordination with specialized engineering units ^[1][2].

The operation, which concluded in early October, exposed the scale of Hezbollah’s pre-ceasefire positioning. IDF soldiers located dozens of missile launchers that had been emplaced in the security zone before the ceasefire agreement took effect, according to Israeli military statements ^[2]. The discovery underscores how Hezbollah used the months before the truce to stockpile weapons and prepare fallback positions across southern Lebanon, banking on the ability to reactivate them once international pressure eased.

The tunnel network represented particular strategic concern. Working with the Yahalom Unit – IDF engineering specialists trained in underground demolition – troops dismantled eight separate routes, some reaching depths of roughly 20 meters and stretching hundreds of meters in combined length ^[1]. One tunnel was discovered running beneath a civilian home in Al-Mansouri, illustrating how Hezbollah embeds military infrastructure within populated areas to complicate Israeli targeting decisions and civilian evacuation planning.

This operation fits a broader pattern of Israeli activity in southern Lebanon since the ceasefire. Earlier operations in July by the 551st Brigade and Yahalom Unit in the Majdal Zoun area uncovered and dismantled two additional tunnel routes, while September operations by the same 55th Brigade discovered 32 rockets positioned in an underground shaft aimed at Israeli territory ^[1]. The consistency of discoveries across multiple areas suggests Hezbollah maintained an extensive network of pre-positioned weapons and tunnels throughout the security zone, treating the ceasefire as a temporary pause rather than a permanent cessation.

The Al-Mansouri mission reflects Israel’s strategic priority: preventing Hezbollah from using the ceasefire period to rebuild operational capacity. Each tunnel dismantled and launcher removed represents a reduced threat vector to Israeli communities in the north. Yet the sheer volume of sites – over 600 in a single operation – indicates the scale of reconstruction work required to eliminate Hezbollah’s military footprint in the zone.

The operation also signals Israeli intent to maintain an active security posture in southern Lebanon despite the truce. Rather than withdrawing entirely, IDF forces are conducting systematic sweeps to identify and eliminate infrastructure before Hezbollah can reactivate it. This approach assumes the ceasefire remains fragile and that Hezbollah will attempt to rebuild if given the space to do so.