The breakdown of the fragile memorandum of understanding (MoU) between the United States and Iran marks a pivotal and perilous moment, signalling not merely the end of a diplomatic off-ramp but the confirmation of a new and more dangerous phase in the long-standing conflict.
The MoU, always more a testament to exhaustion than a foundation for a lasting political solution to the conflict, has disintegrated under the weight of mutual distrust, conflicting regional visions, and internal political pressures.
Its apparent demise carries profound and deeply troubling implications, promising to reshape the domestic political landscapes of the key protagonists and inflict significant damage on the global economy.
It also represents the unravelling of a fragile political equilibrium that had, however imperfectly, prevented the Middle East from descending into an open-ended regional confrontation.
For US President Donald Trump, abandoning the diplomatic framework in favour of renewed military pressure presents both opportunities and profound political risks.
Domestically, escalation may strengthen his standing among Republican hawks who have long argued that Iran responds only to overwhelming force and that any accommodation merely buys Tehran time to strengthen its military capabilities and regional position.
The 17 June accord between Iran and the United States has, since its inception, drawn relentless fire from Republican hawks, foremost among them the late Senator Lindsey Graham, who passed away this week.
Their principal grievance is that the deal does nothing to dismantle Tehran's nuclear or missile programmes, yet rewards Tehran with sanction relief and the unrestricted flow of its oil exports.
Senator Bill Cassidy’s assertion that the deal is the "worst foreign policy blunder in decades" and that former President Ronald Reagan would be "rolling over in his grave" encapsulates this view.
Within this political constituency, renewed military pressure is portrayed as evidence of American resolve and a rejection of what critics often characterise as ineffective diplomacy. Such a posture may reinforce Trump's image as a leader willing to use coercive power to defend American interests.
Yet the same strategy carries significant electoral liabilities. American voters have repeatedly demonstrated that while they often support limited military action in response to direct threats, they remain deeply sceptical of prolonged Middle Eastern conflicts that generate uncertain objectives and escalating economic costs.
The domestic political calculus could turn toxic as the war is viewed by a war-weary public through the lens of rising living costs and an ever-increasing price tag, with polls showing that two out of three Americans believe that Trump has failed to clearly explain its goals.
The conflict has become a significant political liability, potentially harming Republican prospects in the upcoming midterm elections as voters prioritise economic anxiety over abstract discussions about deterrence or regional security.
Escalation also complicates Trump's broader foreign-policy message. Throughout his political career, he has frequently criticised previous administrations for entangling the United States in costly foreign wars while simultaneously advocating a more assertive use of military power when American credibility is challenged.
Balancing these two narratives will become increasingly difficult if military operations against Iran evolve into a sustained regional campaign requiring substantial American resources.
The contradiction between promising to avoid endless wars and becoming increasingly involved in one could become politically damaging, particularly among independent voters and segments of his own political coalition that favour strategic restraint and "America First" policies.
Post-deal Iran: In Tehran, the breakdown of the understanding has ignited an internal power struggle, dramatically reshaping the political landscape to the detriment of reformers and the benefit of hardline conservatives.
The deal had already split the Iranian establishment, with the pragmatic conservative faction, led by figures like Parliament Speaker Mohammad Bagher Ghalibaf, viewing it as a "tactical necessity" to avoid economic collapse and secure sanctions relief. Reformists, including President Masoud Pezeshkian, saw it as the only viable path to end the country's isolation and address a crippling economic crisis.
However, the demise of the deal plays directly into the hands of hardliners, particularly the Paydari Front (Principles Front), which had vociferously opposed the agreement from the outset, denouncing it as capitulation to a sworn enemy and a betrayal of the principles of the 1979 Revolution.
They argue that the strategic gains from the war, particularly leverage over the Strait of Hormuz, must be preserved rather than surrendered, and that American strategic objectives ultimately seek not coexistence but the erosion of Iran's regional influence.
Amid the current military escalation, the Paydari Front has hardened its stance, viewing the ongoing conflict not as a reason for de-escalation but as validation of its long-held maximalist ideology.
Figures like Mahmoud Nabavian, deputy chair of parliament's National Security Committee, have been particularly vocal, framing the agreement as a "surrender" that would reduce Iran to being a "colony of the United States" and warning that any display of weakness only invites further aggression.
Their position is that military resistance is the only path to victory and that the current tensions expose the futility of negotiations with Washington, which they argue will bring "neither benefit in this world nor in the hereafter.”
This uncompromising view is shared by other prominent figures, including former presidential candidate Saeed Jalili and lawmakers like Hamid Rasaei and Amir Hossein Sabeti, who have accused the government's negotiating team of "collusion" and pursuing a "line of surrender.” For the Paydari Front, this is not merely a tactical disagreement but an "existential" struggle.
The faction has demonstrated its ability to mobilise supporters for street protests and has used its influence in parliament and the state media to amplify its opposition, with Nabavian even reading what he claimed were secret letters from Supreme Leader Mojtaba Khamenei on state TV to bolster his argument.
The agreement's failure validates their core argument that engagement with the West is a fool's errand and strengthens their position. It carries important long-term implications.
As hardliners consolidate their influence, Iran's decision-making process may become less flexible and more centred on military institutions and security considerations. Such a transformation would reduce opportunities for future negotiations while increasing the likelihood that Iran invests further in asymmetric capabilities, missile development, regional partnerships, and proxy networks as instruments of strategic deterrence.
Even reformers in Iran acknowledge that military escalation places them in a position of weakness. A prominent reformist politician blamed the United States and Israel for the collapse of the understanding, explaining to Al-Ahram Weekly that "any future negotiations, should they take place, would be far more difficult amid an atmosphere of deep mistrust."
"Washington is negotiating in bad faith, with the clear aim of stripping Iran of its strategic leverage long before any durable agreement can take shape. The technical discussions remain in their earliest stages, and there is considerable doubt that, within the 60-day timeframe, we will be able to reach meaningful understandings on the nuclear issue, sanctions relief, frozen assets, regional policy, and broader security arrangements.”
“Against this backdrop, Trump’s demand that Iran relinquish one of its most significant sources of strategic leverage—the Strait of Hormuz—appears unrealistic and ignores Iran's lack of trust in the US, stemming from hostile policies pursued over the decades," he said.
"As Qalibaf himself has put it, negotiations with Washington are a means to an end, namely, a regionally beneficial agreement. For Trump, however, they serve merely as a vehicle for systematically stripping Iran of its strategic leverage, a process through which Iran risks being pressured into surrendering the very sources of power that underpin its strategic position."
Israeli view: In Israel, from the outset the government has viewed the deal with deep scepticism, seeing it as a major setback that would allow Iran to break out of its economic isolation and preserve its nuclear and military programmes, all the while failing to address Tehran's support for groups like Hizbullah and Hamas.
Having entered the conflict with the hope of crippling Iran's capabilities for a generation, Israel was ultimately sidelined by its American ally and forced to accept an outcome it views as a strategic disaster that falls far short of the transformative change it sought.
The memorandum's provision for a permanent termination of military operations in Lebanon is seen as a particular threat. As a result, Israel is seeking to derail the remnants of the diplomatic process, viewing actions in Lebanon as a crucial pressure point to provoke a response that would torpedo any lasting agreement.
Israeli Defence Minister Israel Katz stated that Israel "did not ask anyone for permission to enter Lebanon, and we do not need permission to remain in Lebanon," just hours after Trump said he believed that the Israeli army would withdraw from the country.
Israeli Prime Minister Benjamin Netanyahu, constrained by his far-right coalition and facing upcoming elections, is under domestic pressure to continue strikes in Lebanon.
What binds the hawks in Iran, the US, and Israel is a mutual investment in perpetual friction. Each side has come to regard sustained military escalation not as a diplomatic failure, but as a strategic asset and one that fortifies domestic authority, silences internal dissent, and postpones the unbearable compromises that a genuine resolution would demand.
* A version of this article appears in print in the 16 July, 2026 edition of Al-Ahram Weekly.
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