Fighting Under the Earth: The History of Tunneling in Warfare - Foreign Policy Research Institute

How Tunnel Warfare Has Evolved Over the Last 3,000 Years, in Photos

Going underground: Ukraine's subterranean fighters highlight the benefit – and long history – of tunnels in warfare

Underground Warfare in World War I: The History and Legacy of the Fighting Beneath and Between the Trenches: Charles River Editors: 9781973919452: : Books

Negotiating While Fighting: Peace Initiatives, British Policy and the Vietnam War by FCDO Historians - Issuu

Israel military operation destroys a Gaza cemetery. Israel says Hamas used the site to hide a tunnel

Battle of Messines, Summary

Israeli army says it has uncovered biggest Hamas tunnel yet, Israel-Gaza war

Fighting Under the Earth: The History of Tunneling in Warfare - Foreign Policy Research Institute

Israel-Hamas War: U.N. Security Council Pushes Vote on Gaza Off for Second Day - The New York Times

The Tunnels of Cu Chi: A Harrowing Account of America's Tunnel Rats in the Underground Battlefields of Vietnam: 9780891418696: Mangold, Tom: Books

North Korea: what war with the US would look like - Vox