Expert: Hezbollah has built a vast tunnel network far more sophisticated than Hamas's

Israel is testing out flooding the Hamas tunnels. Here's what it could look like scaled up, News

Israel Unearths More of a Subterranean Fortress Under Gaza - The New York Times

Hezbollah's huge 'attack tunnel' system 'more sophisticated' than Hamas's, World, News

Hamas Turns Gaza Streets into Deadly Maze for Israeli Troops

500 kilometers of tunnels: How Hamas built an underground city

Hamas' Secret Tunnel Network Complicates Israel's Gaza Ground Invasion Plans - Bloomberg

Hezbollah shows off 'advanced tunnel network' on Israeli border

The Path to October 7: How Iran Built Up and Managed a Palestinian 'Axis of Resistance' – Combating Terrorism Center at West Point

Preparing for Warfare's Subterranean Future - War on the Rocks

It's like being underwater': What Israeli soldiers will face inside the labyrinth of Hamas tunnels