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US-Iran Tensions: The Ongoing Struggle over Nuclear Capabilities

Muhammad Faraan Khan

Muhammad Faraan Khan, CSS aspirant and writer, is Sir Syed Kazim Ali's student.

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15 July 2025

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The US-Iran nuclear standoff is a defining geopolitical challenge, driven by mutual distrust and the complex fallout from the JCPOA's erosion. This analysis explores the historical context, the influence of regional power dynamics, domestic political pressures in both nations, and the broader implications for global non-proliferation norms. A return to sustained, nuanced diplomacy is essential to navigate this volatile situation and prevent further escalation.

US-Iran Tensions: The Ongoing Struggle over Nuclear Capabilities

The enduring tension between the United States and Iran, particularly concerning Tehran's nuclear aspirations, remains a critical and volatile flashpoint in international affairs. This complex standoff, characterized by deep-seated mistrust, conflicting regional ambitions, and the fluctuating fortunes of diplomatic efforts like the Joint Comprehensive Plan of Action (JCPOA), presents a persistent challenge to global security and non-proliferation norms. Undoubtedly, the struggle over nuclear capabilities is not merely a technical dispute but a multifaceted geopolitical contest with profound implications. Navigating this perilous terrain requires a comprehensive understanding of its historical roots, current dynamics, and the potential pathways toward de-escalation, lest miscalculation leads to wider conflict.

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To fully comprehend the nature of nuclear struggle between the US and Iran, it is pertinent to understand the historical aspect of their relationship. The origins of the US-Iran adversarial relationship trace back several decades, significantly marked by the 1953 Iranian coup d'état and the 1979 Islamic Revolution. Iran's nuclear program itself began under the Shah but gained controversial momentum under the Islamic Republic, raising international concerns about potential weaponization. Moreover, these concerns culminated in years of diplomatic wrangling and stringent sanctions, eventually leading to the landmark 2015 JCPOA agreement between Iran and the P5+1 powers (China, France, Russia, United Kingdom, United States, plus Germany). This agreement aimed to curb Iran's nuclear activities in exchange for sanctions relief, offering a brief period of cautious optimism. 

However, the geopolitical landscape shifted dramatically with the US withdrawal from the JCPOA in 2018 and the subsequent reimposition of "maximum pressure" sanctions. This move prompted Iran to progressively scale back its compliance with the deal, enriching uranium to higher levels and limiting international inspections, thereby reigniting fears of a nuclear breakout. Indeed, the current situation is one of heightened alert, with diplomatic avenues largely stalled and the risk of miscalculation perilously high. Therefore, the struggle over nuclear capabilities, warrants sustained critical discussion due to its direct impact on Middle Eastern stability, the integrity of the global non-proliferation regime, and broader international security. 

Navigating the Nuclear Tightrope Key US-Iran Dynamics 

The JCPOA's Fraught Trajectory 

The Joint Comprehensive Plan of Action, when implemented in 2016, was hailed as a triumph of multilateral diplomacy, successfully imposing verifiable limits on Iran's nuclear program. It significantly rolled back Iran’s enriched uranium stockpile and restricted its enrichment levels, pushing the "breakout time", the period needed to produce enough fissile material for one nuclear weapon, to at least a year. In return, Iran received relief from crippling international sanctions. However, the accord was always fragile, facing criticism from various quarters, particularly within the US and from regional adversaries of Iran like Israel and Saudi Arabia. Unfortunately, the unilateral American withdrawal in May 2018, citing concerns that the deal did not address Iran's ballistic missile program or its regional activities, effectively shattered the agreement's foundations. Consequently, Iran began incrementally exceeding the JCPOA's limits, including enriching uranium to levels nearing 60%, a short technical step from weapons-grade material. Efforts to revive the deal have since been intermittent and fraught with difficulties, with both Washington and Tehran hardening their respective positions, leaving the JCPOA in a state of critical limbo and its future highly uncertain. 

Regional Rivalry and Proxy Engagements 

The nuclear dispute is deeply tied to the broader geopolitical rivalry between the United States, its regional allies, and Iran for Middle Eastern influence. Iran’s support for groups like Hezbollah, Houthi rebels, and Shia militias alarms Washington and its partners. While Iran views these alliances as essential for defense and regional power projection, its adversaries see them as destabilizing. The nuclear issue often serves as a bargaining tool within this broader conflict. Rising tensions can strengthen Iranian hardliners and prompt assertive regional behavior, while US nuclear pressure aims to check Iran’s regional influence. Thus, resolving the nuclear standoff requires addressing these wider security concerns, a task that has long challenged diplomats. UN Security Council Resolution 2231, which endorsed the JCPOA, included measures on Iran’s ballistic missile program and arms embargoes, underscoring this link between nuclear negotiations and regional dynamics. 

Domestic Political Imperatives 

The foreign policy decisions of the United States and Iran on the nuclear issue are shaped by their domestic political landscapes. In the US, Iran policy is a partisan issue, influenced by Congress, lobby groups, and public opinion, which fluctuates between diplomacy and coercion. The Trump administration’s withdrawal from the JCPOA fulfilled a campaign promise and reflected a view that the deal was flawed. In Iran, the nuclear program symbolizes national sovereignty and progress, enjoying wide, though not unanimous, support. Moreover, hardline factions use the US threat to consolidate power and stir nationalism. While Supreme Leader Ayatollah Khamenei holds ultimate authority over nuclear policy, the presidency and parliament also influence its discourse and implementation. As a result, diplomatic moves and concessions are often closely scrutinized and limited by internal political pressures in both countries. 

Global Non-Proliferation Architecture Under Stress 

Additionally, the US-Iran nuclear standoff has significant repercussions for the global non-proliferation regime, primarily centered around the Treaty on the Non-Proliferation of Nuclear Weapons (NPT). Iran is a signatory to the NPT, which allows for peaceful nuclear energy programs but prohibits the development of nuclear weapons. For instance, if Iran were to acquire nuclear weapons capability, it could trigger a cascade of proliferation in the Middle East, with other regional powers like Saudi Arabia and potentially Turkey and Egypt reconsidering their own nuclear options. No doubt, this would dramatically destabilize an already volatile region and severely undermine the NPT framework. The International Atomic Energy Agency (IAEA) plays a crucial role in monitoring Iran's nuclear activities, but its access and ability to verify the peaceful nature of the program have been periodically challenged, particularly since Iran reduced its cooperation following the US JCPOA withdrawal. The credibility and effectiveness of the IAEA, and by extension the NPT, are therefore at stake, making the outcome of the US-Iran nuclear dispute a matter of profound international concern beyond the immediate parties involved. 

Economic Sanctions and Strategic Calculations 

Moreover, economic sanctions have been a cornerstone of US policy towards Iran for decades, employed with varying intensity to pressure Tehran over its nuclear program, ballistic missile development, and regional activities. The "maximum pressure" campaign initiated after the 2018 JCPOA withdrawal saw the imposition of some of the most severe sanctions ever, targeting Iran's oil exports, financial sector, and access to the global economy. Indeed, these measures have had a debilitating impact on the Iranian economy, leading to high inflation, currency devaluation, and widespread economic hardship for its population. As documented by reports from organizations like the International Monetary Fund (IMF), Iran's GDP contracted significantly under these sanctions. The strategic calculation behind sanctions is that economic pain will compel Iran to alter its behavior or return to the negotiating table on terms more favorable to the US. However, the efficacy of this approach is debated. While sanctions have undoubtedly inflicted damage, they have also, at times, appeared to strengthen the resolve of hardline elements in Iran and have not definitively halted its nuclear advancements. In turn, Tehran has used its nuclear program's expansion as leverage, attempting to exact a price for the sanctions and push for their removal.

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In a critical sense, the multifaceted US-Iran nuclear dilemma is fraught with complexities that defy simple solutions. The deep-seated animosity and mutual suspicion create a classic security dilemma, where defensive actions by one side are perceived as offensive by the other, leading to escalatory spirals. Verifying intentions, as opposed to capabilities, remains a central challenge. Furthermore, the interplay with regional conflicts and the influence of domestic political considerations in both nations add layers of intricacy, often derailing diplomatic efforts. The current "no deal, no crisis" stasis is inherently unstable, risking miscalculation or an incident that could rapidly escalate into a broader confrontation with devastating consequences. 

To sum up the discussion, the ongoing struggle over Iran's nuclear capabilities, set against the backdrop of decades of US-Iran animosity, demands a renewed commitment to pragmatic and sustained diplomacy. While the JCPOA faced legitimate criticisms and its revival presents formidable obstacles, abandoning diplomatic frameworks altogether risks a far more dangerous outcome. For sure, a path forward requires acknowledging the legitimate security concerns of all parties, exploring incremental de-escalation steps, and fostering channels for consistent communication to prevent accidental conflict. Multilateral engagement, potentially involving regional actors in a broader security dialogue, may offer a more durable framework than bilateral antagonism. Furthermore, the international community must impress upon both Washington and Tehran the profound global interest in a peaceful resolution, one that shores up the non-proliferation regime and averts a catastrophic conflict in a region already teetering on the brink. The alternative is a continued trajectory of escalating risk, with far-reaching and perilous implications for global peace and security.

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15 July 2025

Written By

Muhammad Faraan Khan

Bachelor of Science in Radiology Technology

Student | Author

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Sir Syed Kazim Ali

English Teacher

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Sir Syed Kazim Ali

English Teacher

The following are the references used in the editorial “US-Iran Tensions: The Ongoing Struggle over Nuclear Capabilities”.

       https://www.nytimes.com/2025/05/31/us/politics/iran-nuclear.html 

       https://www.washingtonpost.com/national-security/2025/05/31/iran-nuclear-uranium-enrichment-trump/

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1st Update: July 15, 2025

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