Mega Tunnels of Iran Have Been Collapsed! Secret Materials STRANDED Underground
US just dropped 40 tons of bombs on Iran’s heavily fortified nuclear facility and missile depots.
This time it wasn’t just the tunnel entrances and exits that were hit.
It went deeper.
The targets were a stockpile of 540 kg of 60% enriched uranium and the missile production lines used to turn it into bombs.
The night of March 31st, 2026, Iran’s underground fortress in Isfahan was shaken by massive fireballs and mushroom clouds rising from the depths of the ground.
Isvahan is not just Iran’s third largest city and a cultural capital with a population of 2.3 million.
It is also the heart of Iran’s nuclear program and missile production.
According to CSIS, Isvahan is not a single facility but a vast interconnected network.
A uranium conversion plant which converts Yellow Cake into uranium hexaflloride, a fuel production plant, a centrifuge production unit, metal processing facilities, and the Isvahan missile complex, Iran’s largest missile assembly and production complex.
According to the nuclear threat initiative, this complex is Iran’s largest missile assembly and production site.
A significant portion of all this is hidden in underground tunnels carved into the mountain.
Inside lay a tunnel network stretching over 50 km containing tons of ballistic missiles, precision guidance kits, drone engines, and high explosive rocket fuel.
And there is something else beneath Isvahan.
Perhaps the most important thing.
According to an analysis published by the bulletin of the atomic scientists in March 2026, Iran had moved a stockpile of approximately 540 kg of 60% enriched uranium, enough for 11 nuclear bombs into the underground tunnels in Isvahan prior to the June 2025 attacks.
An image from the Airbus Played Neo satellite dated June 9th, 2025 shows a truck heading toward the southern tunnel entrance carrying 18 blue containers.
According to experts, these containers may contain highlyenriched uranium hexaflloride.
The IAEA has still not been able to visit this facility.
As of March 2026, the facility’s status, capacity, and whether it contains nuclear material remain unknown.
Three massive tunnel entrances carved into the mountains 1,700 m high slope, each lined with thick reinforced concrete, completely buried under earth in recent months and marketed as an impenetrable labyrinth.
Iran had placed its trust in the strength of this mountain and its underground cities.
However, on the night of March 31st, a US air strike leveled this massive facility.
The first bomb fell 10 minutes past midnight.
US and Israeli forces first disabled the Bavar 373 and S300 air defense radars at the Isvahan airport, blinding the city’s defensive eyes.
With its eyes blinded, bomber aircraft slipped into the skies over Isvahan completely silently and without a trace.
They used 2,000lb bunker busting bombs primarily deployed by B2 Spirit stealth bombers as well as F-15 E Strike Eagles and B1B Lancers.
The air strike was so devastating that the Wall Street Journal cited a US officials description of a high volume of penetrator munitions.
Satellite imagery, Maxar/Planet Labs, explosion videos, and the intensity of secondary detonations have led independent analysts to estimate that over 40, some estimates range between 45 and 50, GBU31/Blu 109 munitions were used.
Yes, exactly over 40 BLU 10009 and GBU31Jam equipped monsters turned the tunnel network kilome deep inside the mountain into hell in a matter of seconds.
The high volume mentioned by the Wall Street Journal likely involved the use of 36 to 41 tons of pure bunker busting bombs that night.
Then a chain reaction of hell began.
When these 2,000lb munitions struck the surface, instead of exploding, they penetrated the 1.83 m thick reinforced concrete and rock layers, penetrating deep into the mountain.
Thanks to the delayed fuse, the bombs detonated at the heart of the underground tunnels.
And this is where physics comes into play.
A bomb exploding in a closed underground system creates a pressure wave that cannot escape.
This trapped pressure wave triggers tons of rocket fuel, ballistic missile munitions, and explosive materials within the tunnels.
The massive secondary explosions shown in the videos are evidence of this chain reaction.
The tunnel system may have acted as an amplifier, multiplying the bomb’s effect.
Even a single bunker busting bomb appears to have caused far greater destruction than it could have on its own by triggering the underground stockpiles.
The mountains seem to explode from within.
Collapses, fires, columns of smoke.
The massive underground complex at the foot of Mount Safur is riddled with red craters.
Uranium enrichment plants, fuel fabrication facilities, bad air base, and all critical facilities in the surrounding area.
Trump made a shocking statement immediately after the attack.
>> We were $4.
Yeah.
And we have a country that’s not going to be throwing a nuclear weapon at us.
It is noteworthy that a statement was made at this very moment implying that Iran’s nuclear bomb production had ended and that the American people were now safe because the target struck that night was no ordinary facility.
Based on Trump’s statement regarding nuclear and missile production capabilities which we mentioned at the outset and considering the effects of previous attacks, all of these critical facilities may have been obliterated or rendered inoperable.
The story of Isvahan’s bombardment did not begin in March 2026.
It began a year earlier and each time the strikes went deeper.
First wave.
As part of Operation Rising Lion, which began on June 13th, the Israeli Air Force struck the Isfan Nuclear Technology Center.
Four critical structures, including the uranium conversion plant, fuel plate factory, metal production unit, and central chemistry laboratory, were damaged or destroyed.
But Israel had a problem.
It lacked munitions capable of penetrating deep underground facilities.
It could strike the surface, but couldn’t reach beneath the mountain.
The second wave.
On June 22nd, the US stepped in.
During Operation Midnight Hammer, seven B2 Spirits took off from Whiteitman Air Force Base and reached Iran after an 18-hour non-stop flight.
A total of 14 GBU57A/B bombs were dropped on Fordo, Natans, and Isvahan, the world’s heaviest conventional bombs, weighing 13,600 kg and measuring 6 m in length.
At Fordo, 12 bombs were dropped sequentially into two ventilation shafts, plunging deep into the mountain.
The first bomb shattered the concrete cover while the subsequent ones descended at 300 m/s through the shaft, detonating within the underground complex.
30 Tomahawk cruise missiles fired from a US submarine also collapsed the tunnel entrances in Isfahan.
Trump wrote that night, “All planes are returning safely.
Time for peace.
” But the uranium stockpile could not be located.
9 months later, the IAEA still does not know its whereabouts.
Third wave.
When Operation Epic Fury began on February 28th, 2026, Isvahan was among the targets from the very first night.
The air base and military facilities were struck.
On March 1st, the entrance buildings at Natans in Isfahan province were targeted again and satellite imagery confirmed that at least three buildings sustained heavy damage.
On March 2nd, the IRGC regional headquarters in Isvahan was struck.
On March 3rd, Israel targeted a secret underground nuclear weapons development facility known as Minszad Dehai.
On March 9th, strikes in Isvahan’s historic center damaged UNESCO World Heritage sites, including Nakshi Jahan Square, the Chahel Soton Palace, and Ali Kapu.
The intensity of the attacks was even affecting the city’s historic fabric.
On March 27th, Israel launched a new wave of strikes against nuclear facilities, targeting the Mabarak steel plant in Isvahan, one of Iran’s largest steel facilities.
According to CSIS, there are unverified reports that additional strikes were carried out against the Isvahan nuclear complex during this period.
In other words, Isvahan was being struck nearly every week for a month.
The air base, the IRGC headquarters, the entrances to nuclear facilities, the defense industry, and the steel plant.
But all these strikes were focused on the surface or the entrances.
The real target beneath the mountain, the munitions depot and uranium stockpile was still intact.
On the night of March 31st, the fourth wave arrived, and this time the target was directly underground.
Unable to protect its airspace, underground facilities, and nuclear assets on the battlefield, Iran responded with an asymmetric countermeasure.
On March 31st, the revolutionary guards struck the Kuwaiti super tanker Al-Salmi, which was waiting in the Anchorage E anchorage off the coast of Dubai to sail to the port ofQing Dao, China with a kamicazi drone.
This massive tanker was carrying 2 million barrels of oil and was worth over $200 million at current prices.
The tanker was one of hundreds of ships stranded in the Gulf for over a month.
This attack contains a critical detail.
The Al-Salmi was struck not in the narrow waters of the Strait of Hormuz, but in the waiting area of the port of Dubai, which ships consider safe.
According to UK MTO data, 24 incidents involving ships have been reported since the conflict began.
Iran’s message is clear.
The waters outside the Straight of Hormuz are not safe either.
Simultaneously, the Iranian parliament approved a bill linking transit through the straight of Hormuz to a real-based transit fee and completely banning US and Israeli ships.
And the global cost of this move is heavy.
Brent crude surged to $115 and WTI to $15.
In the US, gasoline prices surpassed $4 per gallon for the first time in nearly 4 years.
The MSCI Asia-Pacific index fell 13% in March, erasing all of 2026’s gains in a single stroke.
Analysts warned that if the Strait of Hormuz remains closed, oil prices could sore to $200.
Striking Isvahan was easy, but opening the Strait of Hormuz does not seem so.
On March 31st, Trump issued a clear ultimatum via social media.
If an agreement cannot be reached soon and the straight of Hormuz is not opened immediately, we will completely destroy all of Iran’s power plants, oil wells, Hog Island, and perhaps even its desalination plants.
The second deadline given to Iran set for April 6th is approaching.
However, according to a report by the Wall Street Journal, Trump told his aids that he might be willing to end the military campaign even if the strait remains closed.
This contradiction created a brief sense of relief in the markets, but the underlying problem remains unresolved.
But the Iranian side paints a completely different picture.
The Iranian side, however, is rejecting the US peace proposals, labeling them excessive and irrational.
With each passing day, a diplomatic solution grows a little further out of reach.
Amid all this, Trump’s sharing of a photo of a mushroom cloud rising from Isfahan without any explanation was more than just a military victory.
This was a calculated psychological warfare move.
The message to the regime was clear.
We’re striking you in your most trusted strongholds underground, and it’s as routine for us as a social media post.
The panic these images caused within the regime exposed the collapse of its the mountains will protect you promise to the domestic public.
To prevent this truth from spreading, the Iranian state dramatically restricted internet access nationwide.
According to some reports, it reduced it to 1%.
One of the largest digital blackouts in history.
But information doesn’t stop at walls.
Satellite internet connections and VPN usage are widespread.
and videos of the explosions in Isvahan began circulating on Iranian social media within hours.
The Iranian people are seeing with their own eyes that the state’s long promised slogan of security beneath the mountains does not reflect reality.
Most Iranians are questioning where the war is leading their country.
And perhaps the most unsettling question is this.
The US mobilized the world’s most powerful military, reduced Iran’s military capacity by 70%, dismantled its underground doctrine, and set its nuclear program back.
But it still hasn’t managed to open a 30 km waterway.
GBU57s can blast through mountains, but there is no magic weapon to clear the mines, kamicazi drones, unmanned surface vessels, and anti-hship missiles fired from the coastline in the straight of Hormuz.
A mine clearing operation could take weeks.
During that time, every ship could be a target and insurance companies are refusing to provide tanker insurance.
Militarily opening the straight of Hormuz is a far more complex operation than striking Isvahan because here the enemy isn’t under the mountain, it’s under the water and at every point along the coastline.
Creating the hell beneath Isvahan was easy.
Opening the straight of Hormuz and saving the global economy, however, is an entirely different challenge and the US does not yet seem to have found an answer to this challenge.
This is the most paradoxical reality of war.
Military victories are being won, but the strategic objective remains out of reach.
The revolutionary guards lost the conventional war, but are still waging the asymmetric war.
And this asymmetric capability is imposing an increasingly heavy toll on the global economy with each passing day.
The ongoing tit fortat attacks on refineries, pipelines, gas fields, and tanker terminals in the Gulf indicate that the global economic pain could last for months, even years.
And only the coming days will reveal who will pull the trigger.
What are your thoughts on this matter?
Please share your thoughts in the comments.
To stay informed about PPR Global’s exclusive analyses, please subscribe to our channel and don’t forget to turn on notifications.
