In brief
The Fordo facility, located near Tehran, is Iran's most fortified nuclear site, deeply embedded in a mountain to resist attacks. Recent U.S. strikes, including the use of bunker buster bombs, have raised global concerns, with Iran labeling the actions as contrary to international law. The International Atomic Energy Agency is monitoring radiation levels while assessing damage and compliance with nonproliferation agreements.
Iran's Fordo Fuel Enrichment Plant, located about 15 miles from Qum and constructed within a mountain for enhanced protection, is regarded as the most fortified nuclear site in the country. Experts estimate that its primary enrichment facilities lie roughly half a mile underground, designed to endure assault, with previous analyses suggesting vulnerability only to sustained attacks from U.S. "bunker buster" bombs. In a significant military campaign on June 22, 2025, six U.S. B-2 bombers reportedly dropped a dozen 30,000-pound bunker buster bombs targeting Fordo along with two additional Iranian nuclear facilities in Natanz and Isfahan. Following the strikes, President Trump claimed that these actions had completely destroyed the aforementioned sites, but Iran denounced the military intervention, branding it as a "violent act against international laws" without revealing specifics on the damage incurred.In light of these developments, the United Nations' nuclear watchdog noted that it detected no significant increase in off-site radiation levels at the affected facilities, although it continues to monitor the situation closely. Fordo plays a crucial role in Iran's uranium enrichment program, holding thousands of advanced centrifuges that allow the country to enrich uranium up to 60 percent—a level that can be escalated to weapon-grade quality with relative speed. The facility's existence remained a closely guarded secret until it came under Western scrutiny, with Iran publicly acknowledging it in 2009.The International Atomic Energy Agency (IAEA) highlighted earlier this year that uranium enriched to 83.7 percent purity was found at Fordo. Despite Iranian assurances that their nuclear endeavors are strictly for peaceful purposes, escalation of tensions has seen Israel consistently targeting this site as essential in their efforts to dismantle Iran’s nuclear capabilities, which Israeli leaders, including Netanyahu, regard as a direct threat to national security.In recent weeks, just ahead of the military strikes, the IAEA confirmed Iran's noncompliance with its nuclear nonproliferation commitments, marking the first U.N. resolution against Iran's nuclear activities in two decades. The ongoing conflict and its implications continue to unfold, drawing global attention to the region and its intricate geopolitical dynamics.
