Executive Summary
The current phase of negotiations on Iran’s nuclear program is marked by heightened European pressure, Iranian mistrust, and competing political objectives within Tehran.
The E3 (Britain, France, Germany) have threatened to trigger the JCPOA’s “snapback” mechanism to compel Iranian compliance, while Iran weighs the economic necessity of engagement against domestic political costs. Regional dynamics—including Israeli military action—exacerbate Tehran’s suspicions of EU motives, complicating mediation efforts.
Unlike under the Obama administration, when Washington credited the EU for its central role in brokering the JCPOA, under the Trump administration Brussels has not been considered a key partner in the US Middle East policy. As a result, any nuclear agreement secured solely through EU mediation is likely to carry less weight in Washington’s strategic calculus.
Key Takeaways
- The E3 are leveraging the threat of “snapback” sanctions to bring Iran back to negotiations, but EU influence is limited due to reduced economic leverage and Iran’s pivot to Eastern partners.
- Tehran perceives Brussels alignment with Tel Aviv, particularly after Israeli strikes on nuclear facilities, as evidence of European and IAEA bias, fuelling mistrust and complicating talks.
- Divergent positions within Iran’s political system (executive vs. parliament) reflect both internal bargaining and strategic signalling, but economic imperatives are driving renewed engagement with the IAEA.
Background Information
In mid-2025, the E3 (French, Germany and UK) threatened to activate the JCPOA’s “snapback” mechanism unless Iran restored full cooperation with the IAEA and resumed talks with the United States, the latter being especially difficult given Washington’s recent bombing of Iranian facilities.
IAEA Director Rafael Grossi confirmed in late August the restoration of some inspection work in Iran. A subsequent agreement signed in Cairo on September 9, 2025, aimed to re-establish inspections, though its scope remains contested between Iranian officials and the IAEA. Grossi declared that the agreement would open the way for inspections and access to Iranian nuclear facilities, and that it also included reporting on all attacked facilities, including the nuclear material present there. Araghchi, by contrast, stated that the agreement would not allow access to the facilities bombed by the United States (Natanz, Fordow, and Isfahan).
Iranian mistrust intensified after Israeli airstrikes in June 2025, which destroyed nuclear facilities and residential buildings housing nuclear scientists. Iranian officials accused the IAEA of indirectly facilitating the strikes by leaking information to Israeli intelligence.
Following the attacks, Iran’s parliament voted to suspend cooperation with the IAEA and even threatened withdrawal from the NPT.
The resumption of cooperation, following Foreign Minister Araghchi’s intervention and negotiations with Grossi, highlighted a divergence between the executive and legislative branches of the Islamic Republic.
Within Iran, the executive branch under President Masoud Pezeshkian is pushing for engagement, while the parliament and hardliners voice opposition. However, hardliner resistance may partly serve a domestic political narrative, while privately aligning with the administration’s strategy.
Washington maintains its maximum pressure policy towards Iran, particularly targeting its oil exports and financial sector.
Meanwhile, the recent Saudi–Pakistani defence pact—framed as a mutual security guarantee in the wake of Israel’s strike on Qatar—underscores the shifting regional security architecture, highlighting the need for Europe to navigate these dynamics cautiously by avoiding excessive coercion against Iran and instead offering security assurances through diplomacy.
Geopolitical Scenario
EU influence on Iran has declined due to significantly reduced trade volumes and Tehran’s increasing reliance on Eastern markets. The E3’s “snapback” threat risks deepening Iran’s isolation and may accelerate its eastward economic and diplomatic pivot.
While the EU seeks to prevent Iran’s full alignment with Russia and China, its diminished role in the US Middle East policy under Trump limits its strategic impact.
It is likely that the European approach, including the imposition of sanctions, also reflects a punitive dimension toward Iran and an attempt to contain what Europe perceives as Tehran’s support to Russia in the context of the war in Ukraine—both by penalising past actions and by seeking to deter any future transfer of arms to Moscow.
Iran views the EU’s coercive measures as aligning with Israeli interests, particularly given the lack of European condemnation of Israeli strikes, which resulted in a death toll of 1,080 people. Suspicions that the IAEA facilitated Israeli operations have fuelled distrust, undermining EU credibility as a neutral broker.
President Pezeshkian faces pressure to deliver sanctions relief and economic stabilisation while countering hardliner narratives portraying negotiations as capitulation. While it remains unclear whether hardliner rhetoric is primarily a political tool to secure internal consensus, public opinion has shifted significantly after Israel’s attack.
Israel’s military actions, coupled with perceived European alignment, reinforce Tehran’s belief that diplomatic engagement offers no security guarantees. EU positioning—balancing diplomacy with implicit support for Israel—risks further alienating Iran and reducing the credibility of European mediation.
Germany accounts for 30% of Iran’s trade with the EU, providing some leverage. However, recent statement by the Chancellor in support of Israeli military action against Iran have sparked controversy.
France has adopted a more balanced approach, opposing forced regime change and prioritizing diplomacy.
Broader European engagement with opposition groups such as the National Council of Resistance of Iran (NCRI) signals latent regime change preferences, although official EU policy does not endorse such an approach.
Conclusion
The Iran nuclear talks remain fragile, shaped by declining European leverage, intensified Iranian mistrust, and competing agendas within Tehran. While Pezeshkian’s administration favours re-engagement to secure economic relief, domestic hardliners and regional security pressures constrain flexibility. The EU continues to play a mediating role, but its credibility has been weakened by perceived alignment with Israel and diminished standing in Washington.
The strategic outcome hinges on whether Iran prioritises economic stabilisation over escalation, and whether the EU can maintain sufficient relevance to bridge gaps between Tehran and Washington while offering a security guarantee to the Islamic Republic. Without US recognition of Brussels as a central partner—unlike during the Obama era—the durability and legitimacy of any EU-mediated agreement are likely to remain limited.
