Iran's Tunnels Were Supposed to Be Indestructible. They Made the Explosion 7x Worse.

🔗 Listen on Spotify: https://open.spotify.com/show/033EsfH... 🔗 How to Read a War Guide: https://eagleeyemilitary.com Iran's Tunnels Were Supposed to Be Indestructible. They Made the Explosion 7x Worse. CENTCOM's seventh consecutive night of strikes against Iran named a new target category for the first time in the July 2026 campaign: underground weapons storage facilities. Iran's IRGC spent two decades and billions of dollars building "missile cities" buried under granite mountains across 12 provinces, storing Shahab-3, Sejjil, Kheybar Shekan, and Paveh cruise missiles in tunnel complexes designed to survive precision airstrikes. The engineering logic behind the tunnels was sound. The granite is nearly incompressible. The depths exceed what American bunker busters can penetrate. The physics inside tells a different story. When a penetrating weapon breaches a sealed tunnel, blast overpressure amplifies up to 7x compared to open air due to wall reflections. Afterburning, a secondary combustion event where unburned explosive gases react with trapped oxygen, increases sustained pressure by 77 to 120 percent. Sympathetic detonation chains propagate between stored missiles that carry Class 1.1 solid rocket propellant. Iran's own propaganda video from March 2025 revealed that missiles are stored in open continuous tunnels without blast doors, separation walls, or isolation barriers, the exact conditions that turn a single breach into a mass detonation event. This video covers the confined-space detonation physics that no one else is explaining, the GBU-72 void-sensing fuze technology, and the design flaw that makes Iran's fastest-reloading tunnel system its most vulnerable. Chapters: 00:00 The Indestructible Tunnel 01:10 Inside Iran's Missile Cities 04:30 Why the Granite Math Worked 07:15 Night Seven: Underground Weapons Storage 09:40 The Propaganda Video That Revealed Everything 12:00 Sympathetic Detonation Chains 14:30 The Bomb After the Bomb: Afterburning 17:00 The Physics That Reverses Protection 19:30 The Paradox Iran Built References: CENTCOM statement on seventh night of strikes. US Central Command via X. July 18, 2026. Iran's Underground Missile Cities: How Protected Are They? Noonpost English. March 2026. GBU-72 Advanced 5K Penetrator Used for First Time in Combat. The Aviationist. March 18, 2026. US strikes Iranian underground missile storage with 5,000-pound penetrator. Air Force Times. March 19, 2026. GBU-72 Bunker-Busters Slam Iran Missile City. Defence Security Asia. March 21, 2026. Iran Shows Off Underground Missile City. The War Zone. March 25, 2025. Iran's Underground Bases: From Missile Cities to Airbases. Militarnyi. March 4, 2026. GBU-57 Massive Ordnance Penetrator specifications. GlobalSecurity.org. Updated 2024. Blast wave propagation in tunnels with one closed end. ScienceDirect. December 2025. Experimental study on TNT equivalence for blast parameters in confined space. Defence Technology journal. January 2025. Underground storage of explosives: modelling blast effects. UK HSE Research Report RR1175. 2022. Sympathetic Detonation Wave Attenuation. ASCE Journal of Materials in Civil Engineering. 2013. Underground ammunition magazine construction and chain explosion prevention. MDPI Sustainability. November 2020. Thermal Environment inside a Tunnel after Thermobaric Explosion. Shock and Vibration journal, Wiley. 2017. Iranian underground missile bases. Grokipedia. March 2026. GBU-57 MOP Penetration Bomb Specs. GlobalMilitary.net. March 2026. Explainer: What Is Pickaxe Mountain? Reuters. July 15, 2026. Effect of earth-penetrating warhead striking underground confined space. Journal of Physics Conference Series, IOP Science. 2024. Iran War 2026 Day 139 Update. GlobalSecurity.org. July 16, 2026. Iran IRGC unveils underground strategic missile base. Times of Israel. January 2021.