U.S. B-2 Stealth Bombers Drop GBU-57 Massive Bunker Busters on Iranian Underground Military Compound
Key keywords: B-2 Spirit Bombers, GBU-57 Bunker Buster, Iran Military Compound, U.S. Airstrike, Iranian Revolutionary Guard Corps, Underground Military Facilities, Middle East Geopolitical Tensions, Massive Ordnance Penetrator
Multiple U.S. defense officials confirmed on condition of anonymity on October 12, 2024, that two B-2 Spirit stealth bombers deployed from Whiteman Air Force Base in Missouri carried out a precision airstrike on a heavily fortified underground military compound belonging to the Iranian Revolutionary Guard Corps (IRGC) in the mountainous outskirts of Isfahan, central Iran, in the early hours of local time. The bombers completed a 32-hour round-trip mission with support from 5 aerial refueling tankers, and released a total of 4 GBU-57 Massive Ordnance Penetrators, the largest conventional bunker buster bombs in the U.S. military inventory, on the target site.
U.S. Central Command stated in a subsequent press release that the strike was a defensive, preemptive action targeting a secret IRGC facility that was in the final stages of developing upgraded Shahab-3 medium-range ballistic missiles capable of carrying nuclear warheads, with a range that covers all U.S. military bases in the Middle East and the entire territory of U.S. allies Israel and Saudi Arabia. Intelligence assessments shared with NATO allies indicate the 4 GBU-57 bombs successfully penetrated the 65-meter thick reinforced concrete bunker roof of the compound, destroying the missile production lines, storage warehouses and command centers inside, with no civilian casualties reported in the surrounding residential areas.
Iranian state media confirmed the airstrike several hours after the attack, but downplayed the damage, claiming that only a minor auxiliary storage facility was hit, and 3 on-duty IRGC personnel suffered light injuries, with no senior officials or critical military assets lost. The Iranian foreign ministry issued a strongly worded statement condemning the U.S. as a “state sponsor of terrorism”, and vowed to deliver a “firm, proportional response at a time and place of our choosing” to defend national sovereignty.
The incident has triggered widespread international concern, with the UN Security Council convening an emergency closed-door meeting to discuss the escalation. The U.S. Secretary of State defended the strike as fully compliant with international law on self-defense, while Russia and China issued joint statements slamming the unilateral military action as a gross violation of Iran’s territorial integrity and the UN Charter, warning that it could lead to a full-scale regional war. Gulf Cooperation Council states have called for all parties to exercise maximum restraint and return to diplomatic negotiations to de-escalate tensions.
Featured Comments
As a U.S. Air Force veteran who served in the B-2 support squadron at Whiteman AFB, I’m relieved to see this precision strike taking out a legitimate military threat. Iran has been hiding their nuclear-capable missile programs under mountain bunkers for years, openly threatening to wipe Israel off the map, and this action sends an unambiguous message that those threats will not be ignored. The fact that there were zero reported civilian casualties is a testament to the accuracy of our weapons and the careful planning that went into this mission.
This is a reckless, illegal act of aggression that will do nothing but drag the U.S. into another devastating war in the Middle East. We have wasted over $8 trillion and lost thousands of American lives in endless regional conflicts since 2001, and this strike risks provoking a full-scale retaliation from Iran that could target U.S. troops stationed across Iraq, Syria and the Gulf. The administration should immediately pull back from this escalation and return to the JCPOA nuclear deal negotiations instead of resorting to violence first.
I’m a civilian living in Dubai, and all of us here are terrified right now. We have spent years caught in the middle of tensions between the U.S. and Iran, and any retaliation from Iran will almost certainly hit civilian targets in Gulf states first. While I understand the U.S. concern about Iran’s missile program, there had to be a diplomatic solution instead of dropping 13-ton bombs on a country in the middle of our region. We don’t want to be collateral damage in a fight that isn’t ours.
As an Israeli citizen, I am grateful for the U.S. taking this necessary action to degrade a regime that has repeatedly called for our destruction. The IRGC has been arming Hezbollah and Hamas with rockets for decades, and letting them develop nuclear-capable missiles under those bunkers would have put every single one of our cities at existential risk. We are fully prepared to support our American allies if Iran chooses to retaliate.