Could Trump Use Bunker-Buster Bombs on New Iranian Nuclear Site?

The United States may again employ bunker-buster bombs against Iran's nuclear program, particularly if Teheran is developing a new underground facility near Natanz, according to speculation based on recent intelligence. This potential action follows the US dropping heavy bombs on the Fordo underground nuclear site in June 2025, which the Trump administration claimed significantly weakened Iran's nuclear capabilities for years.

Despite ongoing military actions by the US and Israel against Iran's nuclear program, the regime in Teheran reportedly remains committed to its objectives. Satellite images and Israeli intelligence suggest Iran is fortifying a mountain, known as Kuh Kolang Gaz La, south of Tehran. This site, potentially housing centrifuges for uranium enrichment, could be Iran's next major underground nuclear facility.

Natanz, a key location in Iran's nuclear program, has been a target of previous attacks. In June 2025, alongside the strike on Fordo, the US Air Force reportedly dropped two bunker-buster bombs on the Natanz enrichment complex. The conflict research institute Acled noted at least four attacks on the Natanz area and two on the nuclear facility itself within the first five months of the current war.

Evidence of Iran's activities in the mountain dates back to 2007, with tunnel entrances observed. However, Iran officially announced the construction of an underground facility for centrifuge production and storage in September 2020. Since then, new tunnel entrances have appeared, and western access points have been fortified. While satellite images show these developments, including potential ventilation shafts, the exact nature and scale of the underground facility remain unclear, as the IAEA has not gained access.