World
US GBU-57: key to countering Iran’s buried nuclear sites

The United States’ GBU-57 Massive Ordinance Penetrator has become crucial in deterring Iran’s nuclear ambitions. Weighing 30,000 pounds, this bunker-busting bomb can reach deeply buried facilities like Fordo, a uranium enrichment plant near Tehran. As Middle East tensions escalate, the GBU-57 may prove vital in any military strike to cripple Iran’s nuclear program.
GBU-57: Unmatched Destructive Power
Engineered by Boeing, the GBU-57 penetrates 200 feet of rock and concrete before detonating. Unlike conventional bombs, it burrows through hardened layers, delivering maximum impact. Defense experts confirm its reinforced steel casing and advanced fuse enable deep penetration. Masao Dahlgren of CSIS states, “This bomb neutralizes fortified sites like Fordo, which standard munitions cannot touch.”
Deployment Hurdles and Strategic Risks
Only the B-2 stealth bomber can deploy the GBU-57, with past sightings at Diego Garcia base. Analysts suggest these bombers could strike Iran, though their current location is unknown. Retired Lt. Gen. Mark Schwartz warns, “Destroying Fordo requires multiple strikes, not just one.” Israel’s air dominance may shield B-2s, but political fallout remains a concern.
Israel’s Strikes Fall Short on Nuclear Targets
Recent Israeli attacks hit Iranian missile stockpiles and command centers but left nuclear sites unscathed. Behnam Ben Taleblu of FDD notes, “Critical nuclear facilities remain intact.” Fordo, buried under 300 feet of rock, still operates per IAEA reports. Without bunker-busters, Israel may resort to cutting power or sealing tunnel entrances.
Military Action vs. Diplomacy
While the GBU-57 offers a military solution, its use risks major geopolitical consequences. Taleblu adds, “Diplomacy remains an option, but Iran’s compliance is unreliable.” The bomb underscores the high stakes in neutralizing Iran’s nuclear program, balancing force with negotiation.
A High-Stakes Standoff
The GBU-57 represents unmatched firepower against Iran’s buried nuclear sites, yet its deployment hinges on strategy and politics. As global scrutiny focuses on Fordo, the world watches whether military action or diplomacy will prevail in this volatile conflict.
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