
Both Israel and the US should ponder air power's limits in Iran
As the war between Israel and Iran escalates, Israel is increasing its calls on the United States to become involved in the conflict.
Former Israeli officials are appearing on US news outlets, exhorting the American public to support Israel's actions.
President Donald Trump has signaled a willingness for the US to become involved in the conflict. He's gone so far, in fact, to suggest in social media posts that he could kill Iran's supreme leader if he wanted to.
The American military could certainly make an impact in any air campaign against Iran. The problem from a military standpoint, however, is that the US, based on its forces' deployment, will almost certainly seek to keep its involvement limited to its air force to avoid another Iraq-like quagmire.
While doing so could almost certainly disrupt Iran's nuclear program, it will likely fall short of Israel's goal of regime change.
In fact, it could reinforce the Iranian government and draw the U.S. into a costly ground war.
The initial stated reason for Israel's bombing campaign — Iran's nuclear capabilities — appears specious at best.
Israeli Prime Minister Benjamin Netanyahu has argued several times in the past, without evidence, that Iran is close to achieving a nuclear weapon. US intelligence, however, has assessed that Iran is three years away from deploying a nuclear weapon.
Regardless of the veracity of the claims, Israel initiated the offensive and now requires American support.
Israel's need for US assistance rests on two circumstances: While Israel succeeded in eliminating key figures from the Iranian military in its initial strikes, Iran's response appears to have exceeded Israel's expectations with their Arrow missile interceptors nearing depletion. Israel's air strikes can only achieve so much in disrupting Iran's nuclear ambitions. Most analysts note that Israel's bombings are only likely to delay the Iranian nuclear program by a few months. This is due to the fact that Israeli missiles are incapable of penetrating the Fordow Fuel Enrichment Plant, which estimates place close to 300 feet underground.
The United States, however, possesses munitions that could damage, or even destroy, the Fordow facility. Most notably, the GBU-57A/B Massive Ordnance Penetrator (more commonly known as a bunker buster) has a penetration capability of 200 feet.
Multiple strikes by said munition would render Fordow inoperable, if not outright destroyed.
The efficacy of air power has been vastly overrated by the popular media and various air forces of the world. Air power is great at disrupting an opponent, but has significant limitations in influencing the outcome of a war.
Specifically, air power is likely to prove an inadequate tool for one of the supposed Israeli and American objectives in the war: regime change. For air power to be effective at bringing about regime change, it needs to demoralize the Iranian people to the point that they're willing to oppose their own government.
Early air enthusiasts believed that a population's demoralization would be an inevitable consequence of aerial bombardment. Italian general Giulio Douhet, a prominent air power theorist, argued that air power was so mighty that it could destroy cities and demoralize an opponent into surrendering.
Douhet was correct on the first point. He was wrong on the second.
Recent history provides evidence. While considerable ink has been spilled to demonstrate the efficacy of air power during the Second World War, close examination of the facts demonstrates that it had a minimal impact. In fact, Allied bombing of German cities in several instances created the opposite effect.
More recent bombing campaigns replicated this failure. The US bombing of North Vietnam during the Vietnam War did not significantly damage North Vietnamese morale or war effort. NATO's bombing of Serbia in 1999, likewise, rallied support for the unpopular Slobodan Milosevic due to its perceived injustice — and continues to evoke strong emotions to this day.
Iran's political regime may be unpopular with many Iranians, but Israeli and potentially American bombing may shore up support for the Iranian government.
Nationalism is a potent force, particularly when people are under attack. Israel's bombing of Iran will rally segments of the population to the government that would otherwise oppose it.
The limitations of air power to fuel significant political change in Iran should give Trump pause about intervening in the conflict.
Some American support, such as providing weapons, is a given due to the close relationship between the US and Israel. But any realization of American and Israeli aspirations of a non-nuclear Iran and a new government will likely require ground forces.
Recent American experiences in Afghanistan and Iraq show such a ground forces operation won't lead to the swift victory that Trump desires, but could potentially stretch on for decades.
James Horncastle is an assistant professor and the Edward and Emily McWhinney professor in international relations at Simon Fraser University.
This article is republished from The Conversation under a Creative Commons license. Read the original article.

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Asia Times
35 minutes ago
- Asia Times
The Israeli logic of assassinating Iran's nuclear scientists
At least 14 nuclear scientists are believed to be among those killed in Israel's Operation Rising Lion, launched on June 13, 2025, ostensibly to destroy or degrade Iran's nuclear program and military capabilities. Deliberately targeting scientists in this way aims to disrupt Iran's knowledge base and continuity in nuclear expertise. Among those assassinated were Mohammad Mehdi Tehranchi, a theoretical physicist and head of Iran's Islamic Azad University, and Fereydoun Abbasi-Davani, a nuclear engineer who led Iran's Atomic Energy Organization. Collectively, these experts in physics and engineering were potential successors to Mohsen Fakhrizadeh, widely regarded as the architect of the Iranian nuclear program, who was assassinated in a November 2020 attack many blame on Israel. As two political scientists writing a book about state targeting of scientists as a counterproliferation tool, we understand well that nuclear scientists have been targeted since the nuclear age began. We have gathered data on nearly 100 instances of what we call 'scientist targeting' from 1944 through 2025. The most recent assassination campaign against Iranian scientists is different from many of the earlier episodes in a few key ways. Israel's recent attack targeted multiple nuclear experts and took place simultaneously with military force to destroy Iran's nuclear facilities, air defenses and energy infrastructure. Also, unlike previous covert operations, Israel immediately claimed responsibility for the assassinations. But our research indicates that targeting scientists may not be effective for counterproliferation. While removing individual expertise may delay nuclear acquisition, targeting alone is unlikely to destroy a program outright and could even increase a country's desire for nuclear weapons. Further, targeting scientists may trigger blowback given concerns regarding legality and morality. Targeting nuclear scientists began during World War II when Allied and Soviet forces raced to capture Nazi scientists, degrade Adolf Hitler's ability to build a nuclear bomb and use their expertise to advance the U.S. and Soviet nuclear programs. In our data set, we classified 'targeting' as cases in which scientists were captured, threatened, injured or killed as nations tried to prevent adversaries from acquiring weapons of mass destruction. Over time, at least four countries have targeted scientists working on nine national nuclear programs. The United States and Israel have allegedly carried out the most attacks on nuclear scientists. But the United Kingdom and Soviet Union have also been behind such attacks. Meanwhile, scientists working for the Egyptian, Iranian and Iraqi nuclear programs have been the most frequent targets since 1950. Since 2007 and prior to the current Israeli operation, 10 scientists involved in the Iranian nuclear program were killed in attacks. Other countries' nationals have also been targeted: In 1980, Mossad, Israel's intelligence service, allegedly bombed Italian engineer Mario Fiorelli's home and his firm, SNIA Techint, as a warning to Europeans involved in the Iraqi nuclear project. Given this history, the fact that Israel attacked Iran's nuclear program is not itself surprising. Indeed, it has been a strategic goal of successive Israeli prime ministers to prevent Iran from acquiring nuclear weapons, and experts had been warning of the increased likelihood of an Israeli military operation since mid-2024, due to regional dynamics and Iranian nuclear development. The wrecked cars in which four of Iran's nuclear scientists were assassinated in recent years are displayed on the grounds of a museum in Tehran in 2014. Photo: Scott Peterson / Getty Images via The Conversation By then, the balance of power in the Middle East had changed dramatically. Israel systematically degraded the leadership and infrastructure of Iranian proxies Hamas and Hezbollah. It later destroyed Iranian air defenses around Tehran and near key nuclear installations. The subsequent fall of Syria's Assad regime cost Tehran another long-standing ally. Together, these developments have significantly weakened Iran, leaving it vulnerable to external attack and stripped of its once-feared proxy network, which had been expected to retaliate on its behalf in the event of hostilities. With its proxy 'axis of resistance' defanged and conventional military capacity degraded, Iranian leadership may have thought that expanding its enrichment capability was its best bet going forward. And in the months leading up to Israel's recent attack, Iran expanded its nuclear production capacity, moving beyond 60% uranium enrichment, a technical step just short of weapons-grade material. During Donald Trump's first term, the president withdrew the US from a multilateral nonproliferation agreement aimed at curbing Iran's nuclear program. After being reelected, Trump appeared to change tack by pursuing new diplomacy with Iran, but those talks have so far failed to deliver an agreement and may be put on hold for the foreseeable future amid the war. Most recently, the International Atomic Energy Agency board of governors declared Iran in non-compliance with its nuclear nonproliferation obligations. In response, Iran announced it was further expanding its enrichment capacity by adding advanced centrifuge technology and a third enrichment site. Even if the international community anticipated the broader attack on Iran, characteristics of the targeting itself are surprising. Historically, states have covertly targeted individual scientists. But the recent multiple-scientist attack occurred openly, with Israel taking responsibility, publicly indicating the attacks' purpose. Further, while it is not new for a country to use multiple counter-proliferation tools against an adversary over time, that Israel is using both preventive military force against infrastructure and targeting scientists at once is atypical. Additionally, such attacks against scientists are historically lower tech and low cost, with death or injury stemming from gunmen, car bombs or accidents. In fact, Abbasi – who was killed in the most recent attacks – survived a 2010 car bombing in Tehran. There are outliers, however, including the Fakhrizadeh assassination, which featured a remotely operated machine gun smuggled into Iranian territory. Why target nuclear scientists? In foreign policy, there are numerous tools available if one state aims to prevent another state from acquiring nuclear weapons. Alongside targeting scientists, there are sanctions, diplomacy, cyberattacks and military force. Targeting scientists may remove critical scientific expertise and impose costs that increase the difficulty of building nuclear weapons. Proponents argue that targeting these experts may undermine a state's efforts, deter it from continuing nuclear developments and signal to others the perils of supporting nuclear proliferation. Countries that target scientists, therefore, believe that doing so is an effective way to degrade an adversary's nuclear program. Indeed, the Israel Defense Forces described the most recent attacks as 'a significant blow to the regime's ability to acquire weapons of mass destruction.' Posters featuring images of Iranian nuclear scientists are displayed in Tehran, Iran, on June 14, 2025. Photo: Fatemeh Bahrami/Anadolu via Getty Images / The Conversation Despite Israel's focus on scientists as sources of critical knowledge, there may be thousands more working inside Iran, calling into question the efficacy of targeting them. Further, there are legal, ethical and moral concerns over targeting scientists. Moreover, it is a risky option that may fail to disrupt an enemy nuclear program while sparking public outrage and calls for retaliation. This is especially the case if scientists, often regarded as civilians, are elevated as martyrs. Targeting campaigns may, as a result, reinforce domestic support for a government, which could then redouble efforts toward nuclear development. Regardless of whether targeting scientists is an effective counter-proliferation tool, it has been around since the start of the nuclear age – and will likely persist as part of the foreign policy toolkit for states aiming to prevent proliferation. In the case of the current Israeli conflict with Iran and its targeting of nuclear scientists, we expect the tactic to continue for the duration of the war and beyond. Jenna Jordan is associate professor of international affairs, Georgia Institute of Technology and Rachel Whitlark is associate professor of international affairs, Georgia Institute of Technology This article is republished from The Conversation under a Creative Commons license. Read the original article.


Asia Times
2 hours ago
- Asia Times
US-India partnership key to re-establish Indo-Pacific deterrence
Originally published by Pacific Forum, this article is republished with permission. The advent of the second Trump administration has had a defining impact on Washington's engagement with the rest of the world. The US-India partnership – often called a 'defining relationship of the 21st century' – stands at a critical phase with opportunities to scale amid the rapid shifts in global geopolitics, geo-economics, and the exponential growth in dual-use technologies. In the last two decades, US-India relations, particularly defense ties, have seen greater military-to-military interoperability and bigger turnover in terms of defense trade. The last one-to-one meeting between President Donald Trump and Prime Minister Narendra Modi in February produced a forward-looking joint statement that, among many other initiatives, aimed to forge a stronger defense partnership in tune with the demands of the dynamic balance of power in the Indo-Pacific region. As President Donald Trump, in his second term, recalibrates the US national security and defense strategies amid new terms of engagement with allies and partners, we argue that the US-India defense partnership has a new opportunity to scale cooperation in interoperability and defense industrial synergy to forge stronger deterrent capabilities in the Indo-Pacific region. In his remarks at the Shangri-La Dialogue in May, US Secretary of Defense Pete Hegseth announced that the United States' priority on foreign policy matters would be the reestablishment of deterrence, especially in (but not limited to) the Indo-Pacific region. It comes as no surprise that the purpose of this deterrence is countering the influence and the threat of the People's Republic of China (PRC). Hegseth stressed this administration's determination, like that of its predecessors, to remain engaged abroad, noting that the prosperity and security of Americans is linked to that of the rest of the Indo-Pacific. The 2025 Annual Threat Assessment of the US Intelligence Community also contends that 'Russia, China, Iran and North Korea – individually and collectively – are challenging US interests in the world by attacking or threatening others in their regions, with both asymmetric and conventional hard power tactics.' In response to this threat, the US will not, in Hegseth's telling, 'preach' to other countries about how they govern themselves, nor does it seek to encircle China or execute regime change. It instead seeks to prevent war and prevent the PRC from carrying out its plans to annex Taiwan – and to do so via 'peace through strength': President Trump has also said that Communist China will not invade Taiwan on his watch. So, our goal is to prevent war, to make the costs too high, and peace the only option. And we will do this with a strong shield of deterrence, forged together with you—America's great allies and defense partners. Together, we will show what it means to execute peace through strength. While framed as a break from a previous administration that, in his telling, allowed deterrence to lapse, in at least one respect Hegseth built on the momentum of Trump 2.0's predecessor: developing bilateral ties with India. Hegseth had his first call with Indian Minister of Defense Rajnath Singh in February, in which they stressed accelerating 'our operational cooperation and defense industrial and technology collaboration to deter aggression in the Indo-Pacific,' along with continuing the 2+2 Ministerial Dialogue and concluding the next 10-year US-India Defense Framework later in 2025. The US-India relationship has seen a number of ups and downs, and the last two decades have been crucial in shaping the current contours. The relationship has the overall support of the major political parties on both sides, and the broader strategic convergence of counteracting China's assertive rise remains broadly intact, which is the mainstay of 're-establishing deterrence.' More than any domain in which the bilateral relationship has grown, the defense sector stands out, through habits of cooperation developed at the tri-service level and the growing defense trade. Moreover, the two defense industrial conclaves envision greater synergy, with a stronger role from the private sector, by following through on initiatives such as the US-India Roadmap for Defense Industrial Cooperation. Private sector partnerships include those between: Those are examples of how Indian and American firms are coming together to co-produce the necessary goods for meeting the security challenges ahead. Recognizing the disruptive impact of new technologies like artificial intelligence and quantum computing, both sides have also announced the Autonomous Systems Industry Alliance (ASIA) aimed at scaling 'industry partnerships and production in the Indo-Pacific.' During the last one-to-one meeting between President Trump and Prime Minister Modi, both sides showed intent to push ahead comprehensive cooperation through the US-India COMPACT (Catalyzing Opportunities for Military Partnership, Accelerated Commerce & Technology) for the 21st century. From the Biden-era iCET (Initiative on Critical and Emerging Technologies) to the US-India TRUST (Transforming the Relationship Utilizing Strategic Technology), a whole-of-government and whole-of-nation approach is envisioned to leverage technologies for partnership in multiple sectors. The integration of US-origin defense items into India's inventory in the last two decades appears significant, despite bureaucratic processes of defense sales and purchases that need fixing from both ends. From heavy-duty transport aircraft and high-end attack helicopters to complex combat vehicles, missile systems and long-endurance unmanned systems, the partnership is growing in sea, land and air-based military assets. The partnership will remain especially important for developing India's anti-submarine warfare capabilities in the Indian Ocean, along with other surveillance and reconnaissance systems for a more robust maritime domain awareness. Follow-up will becrucially required to realize the benefits of the announcements made to 'to streamline defense trade, technology exchange and maintenance, spare supplies and in-country repair and overhaul of US-provided defense systems' and to open negotiations on a reciprocal defense procurement. The Trump administration sounds bullish on the prospects of improving 'accountability and transparency through the foreign defense sales systems to ensure predictable and reliable delivery of American products to foreign partners and allies in support of US foreign policy objectives.' Therefore, it is imperative for Washington and Delhi to work harder on a better alignment of their strategic objectives in the Indo-Pacific region that would, in turn, help streamline their vision of co-development and co-production in defense products and heightened cooperation in 'overseas deployments of the US and Indian militaries in the Indo-Pacific, including enhanced logistics and intelligence sharing.' The US Congress-mandated Commission on the National Defense Strategy last year proposed, among other things, a US 'multi-force theater construct' to enable warfighting in simultaneous conflicts with multiple adversaries, and a pitch for an augmented use of the private sector in the US defense industrial base. Therefore, for a critical stakeholder and major defense partner like India, how Washington's 're-establishing deterrence' pans out in the next few years will be crucial, for scaling the growing bilateral defense cooperation, and in minilateral groupings, such as the Quadrilateral Security Dialogue. India and the United States likely will never be fully aligned on matters of security cooperation, as their differing responses toward Ukraine and Islamic terrorism originating from Pakistan illustrate. However, these differences of opinion should not distract them, as both face a long-term challenge from a PRC that seeks to rewrite the rules of the Indo-Pacific region so crucial to both Delhi and Washington. Furthermore, as major Indo-Pacific powers with large populations and resources, both countries are well-situated to complement one another's efforts to deter Beijing's revisionism. The early signs from the Trump administration's interactions with the Modi government are promising, and it is imperative that the momentum between them continues. Monish Tourangbam ( is a senior research consultant at the Chintan Research Foundation (CRF), New Delhi. Rob York (rob@ is director for regional affairs at Pacific Forum.


Asia Times
4 hours ago
- Asia Times
Bunker busters: what Israel needs and Trump must decide
As Israel escalates its confrontation with Iran, Donald Trump faces a defining foreign policy test. The choice before him is not between diplomacy and war. Diplomacy has largely been exhausted; war, in some form, is already underway. The real question is more consequential and more concrete: should the United States supply Israel with its most formidable non-nuclear weapon—the 30,000-pound bunker buster? These Massive Ordnance Penetrators (MOPs) are designed for a singular purpose: to destroy deeply fortified targets, such as Iran's hardened nuclear facilities. Fordow, Iran's mountain-buried enrichment facility, was built to survive conventional airstrikes. Only the MOP can breach it. For years, US policy rested on a mix of sanctions and diplomacy, backed by the unspoken threat of these weapons. That deterrent is now being tested. Israel, having demonstrated its military capabilities in Gaza and against Hezbollah, is now striking Iranian nuclear scientists and sites and senior military commanders. There is growing confidence in Jerusalem that it can push further, potentially taking out Iran's political leadership. Trump himself recently claimed to have vetoed an Israeli request to target Supreme Leader Ayatollah Ali Khamenei. From Israel's perspective, Iran is advancing too close to nuclear breakout, and the margin for delay is vanishing. Yet Israel still lacks the means to destroy Iran's most hardened assets. Only the US can fill that gap—and must now decide whether to do so. The strategic case for such collaboration is clear. If the US wishes to avoid a protracted regional war, it must consider helping Israel strike preemptively—precisely and decisively—before Iran can entrench itself behind proxies or lash out at other US allies. Whether through direct transfers of MOPs or joint US–Israeli operations, Washington's willingness to act could send an unmistakable message: the free world is willing to act to prevent Iran from becoming a nuclear-armed power. Trump's instincts may align with this moment. No modern US president has embraced Israel's security priorities more overtly. From relocating the US embassy to Jerusalem to recognizing Israeli sovereignty over the Golan Heights, Trump has built deep credibility with Israeli leadership. That credibility now grants him a narrow but meaningful opportunity to lead a coalition not of occupation but deterrence. This confrontation, however, is not solely Trump's to own. Netanyahu has repeatedly demonstrated an ability to bring the US into alignment with Israel's regional posture. In Gaza, the Biden administration maintained rhetorical distance while continuing to supply weapons. The current dilemma is a logical extension: will passive support become active cooperation? There is also a psychological layer to this moment. The memory of President Obama's unenforced 'red line' in Syria continues to haunt US credibility. When America declined to act after Assad's use of chemical weapons, adversaries took note. Iran, Russia and North Korea learned a critical lesson: US threats could prove hollow. That precedent now shapes this moment. Will the next move be guided by strength, by strategy, or by ego—or, as history often shows, a combustible mix of all three? Diplomacy remains relevant, but it is increasingly unclear whether it can contain Tehran's ambitions. The US is left debating whether treaties can hold Iran in check or if MOPs are the only remaining lever. One uncomfortable truth looms: the trajectory and intensity of this conflict—and perhaps the future of nuclear non-proliferation in the Middle East—will depend largely on whether Washington chooses to act. Both allies and adversaries are watching and adjusting their calculations accordingly. Critics will warn of escalation. Transferring MOPs or employing them directly risks igniting open war, destabilizing oil markets and fueling anti-American sentiment. Yet these risks are not new. They have existed since Iran began inching toward the nuclear threshold. What is untenable is the illusion that inaction preserves peace. The current path is one of slow, steady escalation with no clear off-ramp. By enabling Israel to target Iran's nuclear infrastructure with surgical precision, the US may not be choosing the most aggressive course, but the least dangerous one. The only thing more dangerous than using the bunker buster now may be failing to use it when the time calls for it. This is not about boots on the ground. It's about recognizing a geopolitical moment that demands clarity, not caution. Iran has built its nuclear program under mountains for a reason. The question now is whether the United States is prepared (and believes it is right) to help Israel reach beneath them. The answer may be as consequential as any the US has made in the nuclear age. Kurt Davis Jr is a Millennium Fellow at the Atlantic Council and a member of the Council on Foreign Relations. He is also an advisor to private, public and state-owned companies and their boards as well as creditors across the globe on a range of transactions, including debt and equity financings, M&A and special situations (including financial restructurings). He can be reached at .