Connect with us
https://tickernews.co/wp-content/uploads/2023/10/AmEx-Thought-Leaders.jpg

Ticker Views

What is a ‘bunker buster’? An expert explains what the US dropped on Iran

Late on Saturday night, local time, the United States carried out strikes against Iranian nuclear enrichment sites at Fordow, Natanz and Isfahan.

Published

on

Late on Saturday night, local time, the United States carried out strikes against Iranian nuclear enrichment sites at Fordow, Natanz and Isfahan.

The US says it fired 30 submarine-launched missiles at the sites in Natanz and Isfahan, as well as dropping more than a dozen “bunker buster” bombs at Fordow and Natanz.

The kind of bomb in question is the extremely destructive GBU-57 Massive Ordance Penetrator, or MOP, which weighs around 13.5 tonnes.The attacks raise a lot of questions. What are these enormous bombs? Why did the US feel it had to get involved in the conflict? And, going forward, what does it mean for Iran’s nuclear ambitions?

What are ‘bunker busters’, and why are they used?

Bunker busters are weapons designed to destroy heavily protected facilities such as bunkers deep underground, beyond the reach of normal bombs.

Bunker busters are designed to bury themselves into the ground before detonating. This allows more of the explosive force to penetrate into the ground, rather than travelling through the air or across the surface.

Iran’s nuclear enrichment sites at Fordow, Natanz and Isfahan are built deep underground. Estimates suggest that Fordow for example could be 80m beneath the surface, and capped with layers of reinforced concrete and soil.

What is the MOP?

The bunker buster used in this particular operation is the largest in the US arsenal. Leaving aside nuclear weapons, the MOP is the largest known bunker buster in the world.

Weighing some 13.5 tonnes, the MOP is believed to be able to penetrate up to 60 metres below ground in the right conditions. It is not known how many the US possesses, but the numbers are thought to be small (perhaps 20 or so in total).

We also don’t know exactly how many were used in Iran, though some reports say it was 14. However, it is likely to be a significant portion of the US MOP arsenal.

Why does only the US possess this capability?

The US is not the only state with bunker-busting weaponry. However, the size of MOP means it requires very specialised bombers to carry and drop it.

Only the B2 stealth bomber is currently able to deploy the MOP. Each B2 can carry at most two MOPs at a time. Around seven of America’s 19 operational B2s were used in the Iran operation.

There has been some consideration whether large transport aircraft such as the C-130 Hercules could be modified to carry and drop the MOP from its rear cargo doors. While this would allow other countries (including Israel) to deploy the MOP, it is for now purely hypothetical.

Why has the US (apparently) used them in Iran

The Trump administration claims Iran may be only a few weeks from possessing a nuclear weapon, and that it needed to act now to destroy Iranian nuclear enrichment sites. This claim is notably at odds with published assessments from the US intelligence community.

However, Israel lacks bunker-busting weaponry sufficient to damage the deeply buried and fortified enrichment sites at Fordow, Natanz and Isfahan.

An F-15E Strike Eagle releases a GBU-28 ‘bunker buster’ laser-guided bomb, a smaller equivalewnt of the 13,600 kg GBU-57 ‘Massive Ordnance Penetrator’ believed to have been used in Iran.
Michael Ammons / US Air Force

Only the MOP could do the job (short of using nuclear weapons). Even then, multiple MOPs would have been required to ensure sufficient damage to the underground facilities.

The US has claimed that these sites have been utterly destroyed. We cannot conclusively say whether this is true.

Iran may also have other, undeclared nuclear sites elsewhere in the country.

Iran’s reaction

The US has reportedly reached out to Iran via diplomatic channels to emphasise that this attack was a one-off, not part of a larger project of regime change. It is hard to say what will happen in the next few weeks.

Iran may retaliate with large strikes against Israel or against US forces in the region. It could also interrupt shipping in the Strait of Hormuz, which would affect a large portion of global oil shipments, with profound economic implications.

Alternatively, Iran could capitulate and take steps to demonstrate it is ending its nuclear program. However, capitulation would not necessarily mean the end of Iran’s nuclear ambitions.

The value of nuclear weapons

Perhaps a greater concern is that the attack will reinforce Iran’s desire to go nuclear. Without nuclear weapons, Iran was unable to threaten the US enough to deter today’s attack.

Iran may take lessons from the fate of other states. Ukraine (in)famously surrendered its stockpile of former Soviet nuclear weapons in the early 1990s. Russia has since felt emboldened to annex Crimea in 2014 and launch an ongoing invasion in 2022. Other potential nuclear states, such as Iraq and Gadaffi’s regime in Libya, also suffered from military intervention.

By contrast, North Korea successfully tested its first nuclear weapon in 2006. Since then there has been no serious consideration of military intervention in North Korea.

Iran may yet have the ability to produce useful amounts of weapons-grade uranium. It may now aim to buy itself time to assemble a relatively small nuclear device, similar in scale to the bombs used in Hiroshima and Nagasaki.

Depending on what facilities and resources have survived the US strikes, the attack has likely reinforced that the only way the Iranian regime can guarantee its survival is to possess nuclear weapons.

James Dwyer, Lecturer, School of Social Sciences, University of Tasmania

This article is republished from The Conversation under a Creative Commons license. Read the original article.

Ticker Views

Trump cuts India tariffs after Modi agrees to end Russian oil imports

Trump announces new trade deal with India, reducing tariffs to 18% in a major shift in U.S.-India relations.

Published

on

Trump announces new trade deal with India, reducing tariffs to 18% in a major shift in U.S.-India relations.


In a major geopolitical shift, U.S. President Donald Trump announced a new trade deal with India that slashes tariffs on Indian goods to 18%, reversing punitive levies previously as high as 50%.

The deal came following a phone call with Indian Prime Minister Narendra Modi and marks a significant pivot in U.S.–India economic relations after months of tension. Oz Sultan from Sultan Interactive Group joins us to break down what this means for exporters and global markets.

‘Subscribe to never miss an episode of Ticker – https://www.youtube.com/@weareticker


Download the Ticker app

Continue Reading

Ticker Views

UK Prime Minister visits Beijing after eight years to boost trade and security

UK PM visits Beijing to strengthen trade and tackle security issues; insights from Professor Tim Harcourt on Brexit’s impact.

Published

on

UK PM visits Beijing to strengthen trade and tackle security issues; insights from Professor Tim Harcourt on Brexit’s impact.


The British Prime Minister has made the first visit to Beijing in eight years, aiming to strengthen trade links and address growing security concerns with China.

Joining us to unpack the visit is Professor Tim Harcourt, Chief Economist at UTS, who discusses how Brexit has reshaped Britain’s approach and the delicate balance between economic opportunities and security commitments to the USA and NATO.

We also explore how China’s alliances with countries like Myanmar and Russia, along with Canada’s differing approach, influence trade relations, and what this visit means for Australia’s relationship with China.

Subscribe to never miss an episode of Ticker – https://www.youtube.com/@weareticker


Download the Ticker app

Continue Reading

Ticker Views

3 things to know about Kevin Warsh, Trump’s nod for Fed chair

Published

on

3 things to know about Kevin Warsh, Trump’s nod for Fed chair

Kevin Warsh has been tapped by Donald Trump to lead the Federal Reserve.
AP Photo/Alastair Grant

D. Brian Blank, Mississippi State University and Brandy Hadley, Appalachian State University

After months of speculation, President Donald Trump nominated Kevin Warsh on Jan. 30, 2026, to be the next chair of the Federal Reserve.

If confirmed by Congress, Warsh will inherit leadership of the U.S. central bank at a delicate time. For months, current Fed Chair Jerome Powell has come under attack from the Trump administration for failing to heed the president’s call for lower interest rates. The fight has put into question the central bank’s independence and its role in stewarding the economy.

Powell’s term as chair will end in mid-May, leaving his successor to navigate an economy that has improved on some fronts but remains uneven and uncertain.

But what should America expect from the next Fed chair? Here are three things to note about Trump’s nominee.

1. He is a familiar face …

Warsh brings deep experience with monetary policymaking to the role.

A graduate of Stanford University and Harvard Law School, he served as special assistant to the president for economic policy and executive secretary of the White House National Economic Council under President George W. Bush before becoming one of the youngest members of the Federal Reserve Board of Governors.

Warsh is no newcomer to discussions about Federal Reserve leadership. He was a finalist for the job in 2017, when Trump instead appointed Powell. Trump has since stated that he made a mistake by not selecting Warsh then – though clashes between Trump and Powell may have influenced that view.

Two men in suits walk outside.
Fed Chair Jerome Powell increasingly found himself out of step with Donald Trump’s wishes.
AP Photo/Pablo Martinez Monsivais

Warsh’s credentials are unquestionable. As a governor of the Federal Reserve Board from 2006 to 2011, he worked closely with other policymakers and with Wall Street during the global financial crisis of 2008. Since departing the Fed, he has returned to Stanford as a visiting fellow at the Hoover Institution and a lecturer at the Graduate School of Business, as well as a member of the Panel of Economic Advisers of the Congressional Budget Office.

He also has ties to the finance industry. He began his career in mergers and acquisitions at Morgan Stanley and, since leaving the Fed, has worked as a partner at Duquesne Family Office, an investment firm that manages the personal wealth of hedge fund manager Stanley Druckenmiller and other investors.

In 2016, Trump included Warsh in an economic advisory group assembled during his transition. Critics of Warsh’s nomination point toward his father-in-law, Ronald Lauder, a college friend and donor of the president, as evidence of politicization.

2. … with evolving monetary views

The big question people have is what a Warsh Fed would mean for monetary policy – that is, is it likely to play tight or loose with rates.

When the economy is growing quickly, like in 2021, the Federal Reserve tightens policy by raising interest rates to avoid the kind of economic growth that may not be sustainable long term and can lead to bubbles. However, during downturns, like in 2008 or 2020, the economic policy that can provide a backstop for the economy is looser. The Fed tends to lower rates in these situations, which supports growth.

Warsh’s views on monetary policy have long been considered hawkish, meaning he is inclined toward tighter policy and generally higher interest rates to keep inflation in check, even at the expense of slower economic growth. During his previous tenure at the Fed, he signaled concern about expansive monetary tools such as quantitative easing, in which the central bank buys Treasurys and other securities to stimulate the economy. This resulted in what Warsh called a “bloated” Fed balance sheet that held almost US$9 trillion of debt at its peak in 2022.

In recent public remarks leading up to his nomination, however, he has increasingly aligned in part with Trump’s push for lower interest rates and discussed establishing a new Treasury-Fed Accord, like in 1951, when Fed independence from fiscal authorities such as the Treasury Department was established.

3. His nod highlights fight over Fed independence

A central question surrounding this nomination is whether it promotes the politicization of the Federal Reserve.

The Fed’s independence from day-to-day political pressure has long been viewed as a cornerstone of U.S. economic policymaking. Decisions about interest rates, inflation control and financial stability are insulated from electoral politics for that reason. A truly independent Fed can resist making decisions that provide a short-term economic bump – something incumbent governments tend to like – but may lead to longer-term economic pain down the road.

The Fed tends to use its monetary policy tools carefully. Yet politicians tend to want looser monetary policy so the economy grows fast and they get credit for it.

And Warsh’s nomination can be seen in the context of a broader push from the executive branch to exert greater influence over monetary policy. Given Trump’s public criticism of Powell and vocal calls for his early departure, the president almost certainly intended to nominate someone who would lower interest rates according to preferences stated by the administration.

Critics of the nomination have argued that Warsh has a tendency to be more opportunistic with his policy views than Powell and other economists, who try to ignore political preferences.

As such, Warsh’s nomination encapsulates more than just a leadership transition. It highlights the ongoing tensions between political priorities and the traditional economic playbook, between short-term growth pressures and long-term stability, and between institutional independence and democratic accountability.

Time will tell whether he turns out to be hawkish or politically motivated as chair, if he is confirmed.The Conversation

D. Brian Blank, Associate Professor of Finance, Mississippi State University and Brandy Hadley, Associate Professor of Finance and Distinguished Scholar of Applied Investments, Appalachian State University

This article is republished from The Conversation under a Creative Commons license. Read the original article.

Continue Reading

Trending Now