A joint military operation by the United States and Israel against Iran has not led to any significant shift in the trajectory of the Islamic Republic’s nuclear program, Reuters reported, citing sources within U.S. intelligence.

According to those assessments, Washington continues to believe that Iran would need between nine and twelve months to develop a nuclear weapon if its leadership made such a decision — a timeline that remains largely unchanged from estimates voiced in 2025.

At the same time, a substantial portion of Iran’s stockpile of highly enriched uranium appears to have remained intact. The report points to roughly 440 kilograms enriched to 60 percent, with the location of part of this material still unknown to Western officials. Experts note that this uncertainty plays a key role in determining how quickly Iran could move toward building a nuclear arsenal.

U. S. President Donald Trump has previously stated that the objective of military action against Tehran was to curb its nuclear ambitions and prevent the creation of a nuclear bomb.

Specialists from the International Atomic Energy Agency have indicated that Iran’s current reserves of highly enriched uranium could be sufficient — if further enriched — to produce up to ten nuclear warheads.

Former U.S. intelligence analyst Eric Brewer also assessed that Iran likely retains its nuclear materials, suggesting they are stored in deeply buried underground facilities beyond the reach of American munitions.