Inside the Cross-Border Security Operation Linking Lebanon and Syria to Dismantle a Covert Cell

By infiltrating phones, tracking communications, and piecing together intelligence across the border, Lebanese and Syrian security authorities successfully uncovered a cell accused of plotting attacks inside Syria. This operation provides a rare glimpse into a strengthening security partnership between Beirut and Damascus as they target networks tied to the former Syrian regime and seek to limit Hezbollah's influence.

According to local reports, the dismantled cell included both Lebanese and Syrian nationals, featuring a colonel from the intelligence services who served under former president Bashar Al Assad. Reports also indicated that some members received training from Iran-backed Hezbollah. However, a Lebanese security source informed The National that investigations remain ongoing, leaving it unclear whether the suspects received training inside Lebanon or who might be backing the group.

The Lebanese security source stated that the cell was arrested in coordination with Syrian authorities, describing it as an ideal security scenario that paves the way for further arrests of former regime officers. Efforts to improve bilateral relations and enhance border security come as tensions persist regarding weapons smuggling, armed groups, and the movement of former Syrian regime figures.

A Syrian source previously involved in tracking former regime officers explained that the arrests followed electronic intelligence gathered by Syrian security services and shared with Lebanese counterparts. This effort has been spearheaded by an "anti-remnants" division within the Counter Terrorism Department of Syria’s Interior Ministry, located in the Kafr Sousa district of Damascus. Syrian commander Abdulrahman Al Dabbagh has led the intelligence operation, holding meetings with Lebanese security officials in Beirut.

Lebanese President Joseph Aoun has also focused on bolstering intelligence cooperation with Damascus. Relations between Lebanon and Syria have long been sensitive, influenced heavily by Syria's historical military presence in Lebanon during and after the 1975–1990 civil war, which ended with a withdrawal in 2005 following the assassination of former prime minister Rafik Hariri.

The new Syrian government has likewise prioritized better relations with Beirut, emphasizing border security coordination, anti-smuggling measures, and frontier demarcation. Following the outbreak of the Iran war six months ago, Syria deployed troops to the Lebanese border to stop weapons smuggling to Hezbollah, a militia that previously shelled Syrian territory and fought against President Ahmad Al Shara’s forces during the Syrian civil war in support of the Assad regime.

Security cooperation has gained heightened significance amid a US-brokered effort by the Lebanese state to disarm Hezbollah. The source noted that these tensions were followed by a US-driven push to ease the situation and foster cooperation between official sides, pointing to recent progress regarding the release of Syrian detainees from Lebanese jails.