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Inside Operation Epic Fury: Why US is moving B-1 ‘Bunker Busters’ to Britain for strikes on Iran

The United States is preparing long-range strategic bombers, including B-1, B-2 and B-52 aircraft, for possible strikes on Iran’s deeply buried military targets.

Written by: Nischai Vats
3 min readMar 13, 2026 09:25 PM IST First published on: Mar 12, 2026 at 09:41 PM IST
us bomber, iran usUS Airforce crews work on B1 Lancer bombers, that are running an engine test parked on the apron at RAF Fairford, England. (AP Photo)

The United States Air Force is reportedly preparing its long-range strategic bombers, including B-1 bomber aircraft, for possible strikes on Iran’s deeply buried targets, even as the war in West Asia plunged the Gulf region’s oil infrastructure and shipping lanes into a crisis with the closure of the Strait of Hormuz.

The United States is among the countries which maintain a fleet of long-range strategic bombers, with Russia and China being the other two nations. The US Air Force operates three bomber aircraft, which were developed during the Cold War, and reports suggest that the US military has deployed all these warplanes in the ongoing Operation Epic Fury against Iran.

The aircraft includes the Northrop B-2 Spirit, which is a stealth bomber and began its service in the US Air Force in ߉ the Boeing B-52 Stratofortress, which initiated its service in the military in the 1950s; and the Rockwell B-1B Lancer, which began operation in the 1980s.

Though President Donald Trump has said that the US military has succeeded in destroying key targets in Iran and that there’s “practically nothing ​left” to target in Iran ⁠and that the war ​there will end “soon,” additional bombers have been deployed to the main US air base in the UK.

us bomber iran
The aircraft include Northrop B-2 Spirit, which is a stealth bomber, Boeing B-52 Stratofortress and Rockwell B-1 Lancer. (AI Generated Image)

Several videos and news reports showed the US Air Force’s B-1 bomber aircraft being loaded with “bunker buster” explosives at Royal Air Force (RAF) Fairford in Britain on Wednesday. A Gulf News report stated that Washington could be preparing to strike Tehran’s fortified underground facilities, where the Islamic nation is reportedly known to store ballistic missiles and drones.

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Why do US B-1 bomber aircraft matter?

B-1B Lancer:

  • Fastest operational US bomber with a fleet of 45 active-duty B-1B Lancers.
  • B-1B Lancer has the largest payload, carrying 75,000 pounds, including 84 500-pound Mk-82 or 24 2,000-pound general-purpose bombs.
  • It is designed to strike deep and penetrate the reinforced underground bunkers which are reinforced.

B-2 Spirit stealth bomber:

  • It’s a large payload capacity bomber produced by US-based Northrop Grumman.
  • It functions on low observability technology with a range without refuelling of 9,600 kilometres.
  • B-2 Spirit is the only operational aircraft which is certified to carry GBU-57 Massive Ordnance Penetrator, a 30,000-pound “bunker buster” bomb.

What are the possible US targets inside Iran?

  • Sites linked with Iran’s nuclear programme.
  • Command and control bunkers are used to coordinate military operations.
  • Sites which store drones, missiles and other heavy munitions.
  • Industrial sites which are linked to long-range weapons factories and missile production.

Nischai Vats is a Deputy Copy Editor at The Indian Express. His work primarily covers US politics and visa and immigration policy, alongside broader international developments, with an emphasis on accuracy, verification, and clear explainers. Experience Nischai joined The Indian Express in May 2024 where he works on writing, editing, and refining high-impact stories for digital platforms. His role involves ensuring editorial consistency, factual accuracy, and clarity in coverage of complex policy-driven subjects. Earlier in his career, he worked across Indian digital newsrooms in reporting and editing roles, including stints at Inshorts, Newslaundry, Tiranga TV, and Catch News. His newsroom experience spans rapid digital publishing, ground reporting, and copy editing across national, civic, and policy beats. Expertise His core areas of focus include: US politics and governance: Coverage of American political developments, executive actions, and policy shifts. US visa and immigration policy: Reporting and editing stories on visa categories, regulatory changes, and immigration pathways affecting global audiences. Editorial accuracy and copy editing: Ensuring clarity, language precision, and verification in fast-paced digital news environments. Authoritativeness and trustworthiness Nischai's journalism is grounded in verified sources, official documentation, and clear attribution, in line with The Indian Express’ editorial standards. His background across reporting and editing enables him to translate complex policy updates into reliable, reader-friendly coverage. ... Read More

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