US Attacks on Iran’s Nuclear Sites Would Only Delay Program by Months, Preliminary Assessment Suggests

Web Editor

June 24, 2025

a rocket is flying through the air with a flag on it's tail and a flag on its tail, Amédée Ozenfan

Background on Key Figures and Context

The United States has been closely monitoring Iran’s nuclear program due to concerns that the country might be developing nuclear weapons. President Donald Trump and other high-ranking officials, such as Secretary of Defense Pete Hegseth, have asserted that recent attacks on Iran’s nuclear facilities would effectively eliminate the program.

Iran, however, maintains that its nuclear program is for peaceful purposes only. The country has signed the Joint Comprehensive Plan of Action (JCPOA), also known as the Iran nuclear deal, in 2015. The agreement aimed to limit Iran’s nuclear capabilities in exchange for the lifting of international sanctions. The US withdrew from this agreement in 2018, reimposing sanctions on Iran and escalating tensions.

Preliminary Assessment by US Intelligence

According to a preliminary assessment by the US intelligence community, specifically from the Defense Intelligence Agency (DIA), the recent attacks on Iran’s nuclear sites would only set back the program by a few months, contradicting claims made by Trump and Hegseth.

The DIA, which is part of the Department of Defense and one of 18 intelligence agencies in the US, reportedly prepared this initial evaluation. The assessment suggests that Iran’s enriched uranium reserves remain intact, and the nuclear program might only be delayed by one or two months.

Differing Opinions and Challenges in Damage Assessment

There are significant disagreements regarding the extent of damage caused by the attacks, as assessing the impact on nuclear sites in Fordow, Isfahan, and Natanz is a challenging task. The DIA’s evaluation isn’t the only one being conducted, and Washington has yet to fully understand the consequences of these attacks.

Hegseth stated that the bombing campaign “nullified Iran’s ability to build nuclear weapons,” while emphasizing the precision and effectiveness of US bombs. However, the Pentagon has refuted the notion that damage to Iran’s nuclear program was minimal, without directly addressing the DIA’s assessment.

Key Questions and Answers

  • What did the preliminary assessment by US intelligence suggest? The evaluation indicated that the recent attacks on Iran’s nuclear facilities would only delay the program by a few months, contradicting claims that it had been effectively eliminated.
  • Who are the key figures mentioned in this context? President Donald Trump, Secretary of Defense Pete Hegseth, and representatives from the US intelligence community, including the Defense Intelligence Agency (DIA).
  • What is Iran’s stance on its nuclear program? Iran insists that its nuclear program is for peaceful purposes only and has signed the Joint Comprehensive Plan of Action (JCPOA) in 2015 to limit its nuclear capabilities.
  • Why are there differing opinions on the effectiveness of the attacks? Assessing the damage to Iran’s nuclear sites is complex, and there are disagreements on whether the attacks have significantly set back the program.