Current and former Israeli military officials have said that Israel does not have the ability to inflict significant damage on Iran’s nuclear infrastructure.

In recent months Israeli officials, nervous about a new agreement between the United States and Iran, have repeatedly said they will take action to defend their nation if Iran is believed to be close to producing a nuclear bomb.

But The New York Times reported Saturday that current and former Israeli military figures and experts doubt Israel has the capability to destroy or significantly delay Iran’s nuclear program, which is dispersed throughout the large country and some hidden underground.

Experts and officials said that a small-scale attack damaging parts of Iran’s infrastructure might be possible in months while a large attack would take two years to prepare and are currently beyond Israel’s capabilities. One former Israeli general said the only air force capable of a sustained attack is the US Air Force.

Since July 2020, many mysterious sabotage attacks have hit Iran’s sensitive installations, including two devastating explosions at Natanz uranium enrichment site, widely attributed to Israel. These have caused some slowdown, but Iran continues to enrich uranium at higher levels, getting closer to having enough fissile material for a bomb.