Hezbollah’s Tunnels: Safe Haven Against Israeli Ground Assault

Smoke rises following an Israeli airstrike in southern Lebanon. Reuters
Smoke rises following an Israeli airstrike in southern Lebanon. Reuters
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Hezbollah’s Tunnels: Safe Haven Against Israeli Ground Assault

Smoke rises following an Israeli airstrike in southern Lebanon. Reuters
Smoke rises following an Israeli airstrike in southern Lebanon. Reuters

Israel has voiced fresh concerns about Hezbollah’s tunnel network in southern Lebanon, seeing it as a major advantage for the group amid growing threats of a broader conflict along the Lebanese-Israeli border.

These concerns are supported by security reports, including one from the French newspaper “Libération” earlier this year.

The report claims that Hezbollah’s tunnels are more advanced than those of Hamas in Gaza, stretching for hundreds of kilometers with branches reaching into Israel and possibly Syria.

Experts warn that this network could pose significant challenges for the Israeli military if it decides to invade southern Lebanon.

Military expert Brigadier General Dr. Hassan Jouni says Hezbollah's tunnels are crucial for countering Israeli attacks.

“These tunnels offer a safe way to move and are a key part of Hezbollah’s strategy,” Jouni told Asharq Al-Awsat.

He added that the tunnels help balance the fight against Israel’s air superiority, making combat more about underground movements.

Jouni, former head of the Lebanese Army Command and Staff College, emphasized that the tunnels are a major strength for Hezbollah. They enable the group to move fighters, weapons, and missiles secretly, allowing for unexpected maneuvers in battle.

The Alma Research and Education Center, dedicated to researching the security challenges on Israel’s northern borders, reported that since the 2006 Lebanon War, Hezbollah, with assistance from North Korean and Iranian experts, has developed a regional tunnel network in Lebanon that surpasses Hamas’ metro in Gaza.

The center notes that southern Lebanon’s terrain—characterized by rocky hills and valleys—differs significantly from Gaza’s, making the task of digging tunnels up to 10 kilometers deep into Israeli territory particularly challenging.

The center suggests that the Israeli estimates struggle to accept the possibility that Hezbollah could have successfully excavated such extensive tunnels through this rugged terrain.

According to Alma, achieving this would be an extraordinary feat, potentially considered a major military embarrassment rather than a mere failure for Israel.

Israel targets sites it believes are military, missile, or weapon storage areas in its confrontations with Hezbollah but struggles to map or fully understand the group’s tunnel network.

Jouni points out that Hezbollah has built its tunnels with advanced techniques, benefiting from favorable conditions and possibly using technology from North Korea.

Jouni suggests that these tunnels enhance Hezbollah’s ability to conduct guerilla warfare and might even be used for military operations, potentially reaching into the occupied Palestinian territories.

Unlike Hamas, Hezbollah hasn’t publicized its tunnel network despite increasing Israeli threats and the risk of a ground invasion. This secrecy suggests Israel may lack detailed information about the tunnels and fears potential surprises.

Dr. Riadh Kahwaji, a Middle East security and defense analyst and director of the Institute for Near East and Gulf Military Analysis (INEGMA), says Hezbollah’s extensive tunnels allow safe underground movement while Israel, with its strong air superiority, can only monitor surface activity.

Kahwaji explains that, similar to Gaza, where tunnels serve various functions, Hezbollah’s network is even larger and more complex.



Lebanese Front’s Tunnels Used for Defense, Attack and Launching Missiles

In 2019, Israeli forces searched for attack tunnels dug in southern Lebanon that extend into Israel (Israeli Ministry of Defense)
In 2019, Israeli forces searched for attack tunnels dug in southern Lebanon that extend into Israel (Israeli Ministry of Defense)
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Lebanese Front’s Tunnels Used for Defense, Attack and Launching Missiles

In 2019, Israeli forces searched for attack tunnels dug in southern Lebanon that extend into Israel (Israeli Ministry of Defense)
In 2019, Israeli forces searched for attack tunnels dug in southern Lebanon that extend into Israel (Israeli Ministry of Defense)

Lebanon’s Iran-backed Hezbollah group faces Israeli air superiority and technological capabilities by going underground. The group has built a massive and complex network of tunnels in the South, the southern suburbs of Beirut, and the Bekaa regions.
The ongoing clashes between Hezbollah and the Israeli army on the southern Lebanese border, which erupted in October, has brought back the spotlight on these tunnels, which have been shown to be divided into 3 types.
The first are defensive tunnels that allow the party’s fighters to take shelter from aircraft raids. The second are offensive tunnels that the Israeli army said it destroyed in 2019, and the third group consists of small tunnels to hide rocket launchers and which appeared in one of the video clips broadcast by Hezbollah’s military media last month.
According to Israeli reports, Hezbollah started digging tunnels in the 1980s and 1990s, but those remained far from the border with Israel. However, in 2006, the Israeli media showed a tunnel that the Israeli army discovered during the July war inside Lebanese territory, and quoted officials as saying that the party’s construction of cross-border tunnels began before the start of the Second Lebanon War in 2006.
Concerned about tunnels extending into Israeli territory, Israeli authorities launched a campaign in 2018 to destroy this infrastructure, and announced in 2019, the end of its operation to raze all of Hezbollah’s cross-border attack tunnels.
The last tunnel that Israel destroyed stretched along 800 meters. The Israeli army said the tunnel extended over dozens of meters into Israel, and was dug to a depth of 55 meters, making it the deepest tunnel discovered by the army. The tunnel was equipped with electricity, had a railway to transport equipment and waste, exit stairs and other elements that made it more advanced than other passageways that were uncovered.
In 2020, the Israeli Ministry of Foreign Affairs, with the participation of the Israeli army, organized a field tour for 12 diplomats from UN Security Council member states, to show them the tunnel on the northern border with Lebanon.
Since the eruption of war on Oct. 8, Lebanese sources have confirmed that the Israeli army used bunker-piercing bombs to destroy tunnels suspected of being built by the party in the border area.
A report issued by the Alma-Israel Research Center said that after the 2006 Lebanon War, the party established a defensive plan to confront any possible Israeli invasion, with dozens of operations centers equipped with local underground networks and tunnels.
In addition to the previous two types of tunnels, Hezbollah media revealed a third category. Last month, the party’s media presented a report on the party’s artillery and weapons, and one of the clips showed a rocket launcher rising from the ground and launching a missile, indicating that the party hides these platforms underground.