Firstpost
  • Home
  • Video Shows
    Vantage Firstpost America Firstpost Africa First Sports
  • World
    US News
  • Explainers
  • News
    India Opinion Cricket Tech Entertainment Sports Health Photostories
  • Asia Cup 2025
Apple Incorporated Modi ji Justin Trudeau Trending

Sections

  • Home
  • Live TV
  • Videos
  • Shows
  • World
  • India
  • Explainers
  • Opinion
  • Sports
  • Cricket
  • Health
  • Tech/Auto
  • Entertainment
  • Web Stories
  • Business
  • Impact Shorts

Shows

  • Vantage
  • Firstpost America
  • Firstpost Africa
  • First Sports
  • Fast and Factual
  • Between The Lines
  • Flashback
  • Live TV

Events

  • Raisina Dialogue
  • Independence Day
  • Champions Trophy
  • Delhi Elections 2025
  • Budget 2025
  • US Elections 2024
  • Firstpost Defence Summit
Trending:
  • PM Modi in Manipur
  • Charlie Kirk killer
  • Sushila Karki
  • IND vs PAK
  • India-US ties
  • New human organ
  • Downton Abbey: The Grand Finale Movie Review
fp-logo
'37-hour mission, biggest use of supercomputer': Inside the US strikes on Iranian nuclear sites
Whatsapp Facebook Twitter
Whatsapp Facebook Twitter
Apple Incorporated Modi ji Justin Trudeau Trending

Sections

  • Home
  • Live TV
  • Videos
  • Shows
  • World
  • India
  • Explainers
  • Opinion
  • Sports
  • Cricket
  • Health
  • Tech/Auto
  • Entertainment
  • Web Stories
  • Business
  • Impact Shorts

Shows

  • Vantage
  • Firstpost America
  • Firstpost Africa
  • First Sports
  • Fast and Factual
  • Between The Lines
  • Flashback
  • Live TV

Events

  • Raisina Dialogue
  • Independence Day
  • Champions Trophy
  • Delhi Elections 2025
  • Budget 2025
  • US Elections 2024
  • Firstpost Defence Summit
  • Home
  • World
  • '37-hour mission, biggest use of supercomputer': Inside the US strikes on Iranian nuclear sites

'37-hour mission, biggest use of supercomputer': Inside the US strikes on Iranian nuclear sites

FP News Desk • June 27, 2025, 07:19:51 IST
Whatsapp Facebook Twitter

Defence Secretary Pete Hegseth said the US undertook “the most secret and most complex military operation in history,” but he fell short of providing specific details about the operation

Advertisement
Subscribe Join Us
Add as a preferred source on Google
Prefer
Firstpost
On
Google
'37-hour mission, biggest use of supercomputer': Inside the US strikes on Iranian nuclear sites
The combination picture on the left shows satellite views of tunnel entrances to the Isfahan Nuclear Technology Research Center before (below) and after (above) being hit by US airstrikes. The satellite image on the right shows the damaged tunnel entrances in a wider view. (Maxar Technologies/Handout via Reuters)

The Pentagon has released new details of how the US carried out its attacks in Iran, targeting three key nuclear sites in the country. The report also has information about the personnel involved in the weekend attacks and reveals how Tehran fortified the site that holds critical aspects of its nuclear programme.

Defence Secretary Pete Hegseth said the US undertook “the most secret and most complex military operation in history,” but he fell short of providing specific details about the operation. Specifics were, however, shared by Joint Chiefs of Staff Chairman Gen. Dan Caine, which shows the level of sophistication in carrying out the mission.

STORY CONTINUES BELOW THIS AD

US joined the Israel-Iran conflict over the weekend and bombed three key nuclear sites, Natanz, Fordow and Isfahan. There has been some dispute over the extent of the damage caused by American strikes, with US President Donald Trump saying that they “obliterated” the nuclear facilities and media reports claiming that the sites were only set back by a few years.

More from World
'Brightest blast I've ever seen': B-2 fighter jet pilot recalls US strikes on Iran's nuclear facilities 'Brightest blast I've ever seen': B-2 fighter jet pilot recalls US strikes on Iran's nuclear facilities Trump, Pentagon say 'nothing was taken out' of Iran’s nuclear facilities before US strikes Trump, Pentagon say 'nothing was taken out' of Iran’s nuclear facilities before US strikes

What has been revealed in the report?

Caine shared previously undisclosed information about the bombing crew involved in the mission, along with the extensive preparations carried out across the military.

So many experts worked on designing the bombs that hit their target that they became the “biggest users of supercomputer hours within the United States of America” at one point, he said.

The crew that carried out the 37-hour-long mission included both men and women, ranging from captain to colonel. Most of the crew members were graduates of the Air Force Weapons School, an elite academy in Nevada.

Impact Shorts

More Shorts
‘The cries of this widow will echo’: In first public remarks, Erika Kirk warns Charlie’s killers they’ve ‘unleashed a fire’

‘The cries of this widow will echo’: In first public remarks, Erika Kirk warns Charlie’s killers they’ve ‘unleashed a fire’

Trump urges Nato to back sanctions on Russia, calls for 50–100% tariffs on China

Trump urges Nato to back sanctions on Russia, calls for 50–100% tariffs on China

“When the crews went to work on Friday, they kissed their loved ones goodbye, not knowing when or if they’d be home. Late on Saturday night, their families became aware of what was happening,” Caine said.

Following the attacks that have been dubbed successful by the US, the B-2 Stealth bombers, the ones that were used to “destroy” the nuclear sites, returned to Missouri and were welcomed by the crews’ families, “waving flags and tears were flowing,” he added.

STORY CONTINUES BELOW THIS AD

Fortified Fordow

In the days leading up to the mission, Iran tried to reinforce the Fordow nuclear facility, buried deep within a mountain, by sealing the ventilation shafts with concrete, aiming to block the entry points for American bombs.

“I won’t share the specific dimensions of the concrete cap. But you should know that we know what the dimensions of those concrete caps were. The planners had to account for this. They accounted for everything,” the general said.

Meanwhile, Caine also highlighted that despite the last-minute adjustments, the mission was carried out on time as planned, adding that the 30,000-pound bunker-buster bombs functioned “as designed” in the first try.

At least 44 soldiers and two Patriot missile batteries were deployed to defend a nearby base from potential Iranian retaliation.

Tags
Iran United States of America
End of Article
Latest News
Find us on YouTube
Subscribe
End of Article

Impact Shorts

‘The cries of this widow will echo’: In first public remarks, Erika Kirk warns Charlie’s killers they’ve ‘unleashed a fire’

‘The cries of this widow will echo’: In first public remarks, Erika Kirk warns Charlie’s killers they’ve ‘unleashed a fire’

Erika Kirk delivered an emotional speech from her late husband's studio, addressing President Trump directly. She urged people to join a church and keep Charlie Kirk's mission alive, despite technical interruptions. Erika vowed to continue Charlie's campus tours and podcast, promising his mission will not end.

More Impact Shorts

Top Stories

Russian drones over Poland: Trump’s tepid reaction a wake-up call for Nato?

Russian drones over Poland: Trump’s tepid reaction a wake-up call for Nato?

As Russia pushes east, Ukraine faces mounting pressure to defend its heartland

As Russia pushes east, Ukraine faces mounting pressure to defend its heartland

Why Mossad was not on board with Israel’s strike on Hamas in Qatar

Why Mossad was not on board with Israel’s strike on Hamas in Qatar

Turkey: Erdogan's police arrest opposition mayor Hasan Mutlu, dozens officials in corruption probe

Turkey: Erdogan's police arrest opposition mayor Hasan Mutlu, dozens officials in corruption probe

Russian drones over Poland: Trump’s tepid reaction a wake-up call for Nato?

Russian drones over Poland: Trump’s tepid reaction a wake-up call for Nato?

As Russia pushes east, Ukraine faces mounting pressure to defend its heartland

As Russia pushes east, Ukraine faces mounting pressure to defend its heartland

Why Mossad was not on board with Israel’s strike on Hamas in Qatar

Why Mossad was not on board with Israel’s strike on Hamas in Qatar

Turkey: Erdogan's police arrest opposition mayor Hasan Mutlu, dozens officials in corruption probe

Turkey: Erdogan's police arrest opposition mayor Hasan Mutlu, dozens officials in corruption probe

Top Shows

Vantage Firstpost America Firstpost Africa First Sports

QUICK LINKS

  • Trump-Zelenskyy meeting
Latest News About Firstpost
Most Searched Categories
  • Web Stories
  • World
  • India
  • Explainers
  • Opinion
  • Sports
  • Cricket
  • Tech/Auto
  • Entertainment
  • IPL 2025
NETWORK18 SITES
  • News18
  • Money Control
  • CNBC TV18
  • Forbes India
  • Advertise with us
  • Sitemap
Firstpost Logo

is on YouTube

Subscribe Now

Copyright @ 2024. Firstpost - All Rights Reserved

About Us Contact Us Privacy Policy Cookie Policy Terms Of Use
Home Video Shorts Live TV