Hezbollah relies on 'sophisticated' tunnel system backed by Iran, North Korea in fight against Israel

Hezbollah has developed a sophisticated tunnel system with the backing of Iran and North Korea to counter Israel while simultaneously gaining support across Lebanon, becoming Israel's greatest threat.

Caitlin McFall is a Reporter at Fox News Digital covering Politics, U.S. and World news.

Though the existence of the tunnels has been known for decades, the significant role they play in arming Hezbollah has once again come to light during the Israeli-Hamas war in Gaza, where terrorists have not only relied on tunnels for operational rearmament and maneuvering capabilities but also to house hostages taken by Hamas nearly a year ago.

While it is estimated that the Israel Defense Forces (IDF) have eradicated roughly 80% of Hamas’ tunnels, Hezbollah’s tunnels, which have largely remained untouched since the war in Gaza began, are believed to be far more sophisticated and "significantly larger," according to a report by the Alma Research and Education Center, a nonprofit organization that researches Israeli security challenges along its northern border.