The relationship between the United States and Iran remains rooted in mutual hostility, strategic distrust, and ideological divergence. Yet, today’s regional and international dynamics are pushing both sides toward a cautious recalibration, favouring indirect diplomacy over open confrontation. Tehran continues to view Washington through the lens of a containment policy, executed through sanctions, military presence, and regional alliances. However, shifting Middle Eastern alliances, such as the Abraham Accords of 2020, Saudi-Iran rapprochement[1], and the broader trend of de-escalation, have created a more fluid geopolitical environment. Within this context, Iran is seeking to position itself as a central regional actor navigating a recalibrating multipolar Middle East.
The post-October 7, 2023, environment marks a notable evolution in U.S.-Iran dynamics. Where once their tensions were defined by clear bilateral flashpoints, they are now embedded in more complex multipolar tensions. The weakening of traditional Iranian allies such as Hezbollah, after the assassination of Hassan Nasrallah and the destruction of their Headquarters in September 2024[2], and Syria, after the fall of Bashar al-Assad’s regime in December 2024, has accelerated Tehran’s internal reassessment. These developments underscore Iran’s recent strategic pivot: less reliance on regional proxies and greater focus on internal stability and controlled external engagement.
Diplomatic overtures are increasingly routed through quiet channels. Formal diplomacy like the JCPOA negotiations, has stalled, replaced by backchannel communications facilitated by neutral actors such as Oman and Qatar. The legacy of successful informal talks, such as the 2013 Oman discussions leading to the 2015 Joint Comprehensive Plan of Action (JCPOA), highlights the importance of Track II diplomacy. Recent U.S.-Iran exchanges in Muscat similarly reflect mutual “strategic fatigue,” a concept articulated by Seyed Hossein Mousavian, as both sides recognize the unsustainable cost of unchecked escalation. High-profile incidents, such as the January 2020 assassination of Qassem Soleimani, still shape red lines but have also contributed to a shared desire to avoid direct conflict.
Domestically, Tehran faces mounting challenges: economic stagnation, currency devaluation, rising public dissatisfaction, and the unresolved question of Supreme Leader Khamenei’s succession. These pressures incentivize external stabilization and reduce the appetite for regional adventurism. Meanwhile, Iran’s strategic priorities are increasingly shaped by economic aspirations, notably energy exports and trade partnerships with China, Russia, and neighboring states. Regional shifts, such as Turkey’s assertiveness in Syria and the recalibration of Russia’s regional focus, are further shaping Iran’s strategic calculations. Washington, for its part, seeks to maintain a delicate balance. With military retrenchment underway in the Middle East and crises in Ukraine and Taiwan demanding attention, the U.S. is recalibrating its approach to Iran, not through appeasement, but mainly through calibrated deterrence and managed dialogue. Even if Tehran views U.S. support for Israel as deeply biased, it recognizes that Washington plays a crucial role in preventing escalation, especially as it pressures Tel Aviv to exercise restraint amidst heightened tensions.
The Biden administration’s dual strategy (diplomatic engagement paired with strategic pressure) has involved Gulf intermediaries issuing warnings to Tehran while encouraging indirect dialogue. This echoes Cold War-style conflict management, relying on signaling, tacit rules, and third-party mediation to prevent open warfare. The recent Muscat discussions indicate that both Pezechkian’s government and Trump’s administration prefer ambiguity and informal arrangements over public commitment, allowing space for testing proposals and gauging intent without the constraints of formal diplomacy. Furthermore, regional fragmentation is reshaping the “Axis of Resistance.” Hezbollah’s weakening, the fall of Assad and the rise of Sunni leadership in Syria under Ahmad al-Sharaa, and Hamas’s losses have forced Tehran to reassess its regional leverage. Iran’s inability to guarantee Hezbollah’s influence in Lebanon or Assad’s regime in Syria represents a sharp decline in Tehran’s strategic reach, providing Washington with stronger negotiating leverage.
Despite these vulnerabilities, Iran is unlikely to abandon its ideological foundations. However, it appears increasingly willing to engage in limited, transactional diplomacy that serves national interests. This includes cooperation on humanitarian issues, prisoner swaps, and potentially, nuclear safeguards. For the U.S. and the European Union, this opens the door for issue-specific agreements that avoid the pitfalls of overambitious, all-encompassing deals. Ultimately, today’s U.S.-Iran dynamic is not one of normalization, but of managed hostility. Both countries recognize the dangers of miscalculation. The absence of formal diplomatic ties increases the risks of escalation—but also makes third-party mediation and backchannel diplomacy all the more critical. The survival of this fragile détente depends on each side’s ability to maintain restraint, avoid provocation, and leverage informal tools of engagement.
The future of U.S.-Iran relations will likely remain uncertain, shaped by elections, leadership transitions, regional shocks, and global power shifts. However, this moment, characterized by mutual fatigue, strategic recalibration, and indirect engagement, offers a narrow but vital opportunity to avoid the cycle of escalation that has defined the past two decades.
Notes
[1] Editor’s note: The Saudi-Iran rapprochement started in 2019 when the Saudi-led coalition gradually withdrew its military engagement in Yemen. It was further apparent when the diplomatic détente was brokered by China in 2023. Thomas McMullan, “Saudi-Iran Rapprochement Signals Shifting Regional Power Dynamics in the Middle East,” Australian Institute of International Affairs, November 25, 2024
[2] Editor’s note: On September 27, 2024, Israel attacked Hezbollah’s headquarters in Southwest Beirut. During this attack senior officials and Hassan Nasrallah were killed. “Au Liban, l’armée israélienne multiplie les raids aérien contre le Hezbollah,” Le Monde, December 28, 2024
