Diplomacy Under Siege: How Turkey And Israel Undermine Iran–US De-escalation

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A Moment of Strategic Opportunity

The fragile path toward an Iran–US agreement is increasingly crowded with spoilers—and not all of them sit in Washington. As backchannel diplomacy intensifies and public rhetoric softens, two regional actors, Turkey and Israel, are strategically intervening to prevent a meaningful breakthrough. Their motives may differ, but the outcome is the same: prolonging hostility between Tehran and Washington.

Since early 2025, there have been cautious signs that Washington and Tehran may explore a new framework for limited sanctions relief in exchange for regional de-escalation. While US domestic politics remain polarized, backdoor efforts by European mediators have yielded informal talks. Iran’s recent diplomatic outreach to Russia, including a high-level message from Supreme Leader Khamenei to President Putin, suggests Tehran is positioning itself for multipolar leverage. Yet this very initiative is seen by some regional powers as a threat.

Israel’s Campaign of Preemption

Israel’s opposition to Iran–US détente is neither secret nor subtle. Through lobbying entities like AIPAC and a steady flow of security briefings to US Congress, Tel Aviv seeks to frame any opening toward Tehran as appeasement of a “rogue regime.” In April 2025, AIPAC warned against any US concessions, stating: “Iran cannot be rewarded for destabilization.” Meanwhile, reports have surfaced of Israeli intelligence activities aimed at sabotaging Iran’s nuclear facilities and spreading cyber disinformation on social media.
These moves are part of a broader narrative war: to portray Iran as an unchangeable threat and thereby lock Washington into a permanent containment strategy. While public discourse emphasizes “non-proliferation,” the underlying goal is to prevent Iran from reclaiming any degree of international legitimacy.

Turkey’s Shadow Diplomacy

While Israel acts overtly, Turkey’s interference is more covert and opportunistic.

Presenting itself as both a NATO member and regional stabilizer, Ankara has worked to insert itself into the Iran–US equation—positioning itself as a go-between while quietly leveraging the tension to bolster its regional weight.

While Turkey has not played a formal mediating role between Tehran and Washington—as Oman currently does—it has sought to project relevance by aligning itself rhetorically with agreement while simultaneously amplifying anti-Iran narratives through media and regional alliances. Turkish outlets, often aligned with state interests, have painted Iran’s regional allies as “spoilers of peace,” subtly undermining Tehran’s diplomatic image while preserving Ankara’s leverage with both NATO and the  Pesrian Gulf.

The Bigger Game: Controlling the Narrative

What unites Israel and Turkey—despite their divergent ideologies—is a desire to shape the regional narrative in a way that minimizes Iran’s soft power. For Israel, Iran’s resistance discourse challenges the Zionist framework. For Turkey, Iran’s ideological and strategic consistency limits Ankara’s ability to lead the Sunni bloc.

This competition is no longer confined to military or economic dimensions; it now encompasses media, diplomacy, and soft influence. The growing recognition of this dynamic has led Iranian strategists to speak of a “narrative siege” around the country—a siege that requires counter-strategies rooted in civilizational confidence and information sovereignty.

Conclusion: Dialogue at a Crossroads

As Iran and the US inch closer toward re-engagement, the region’s geopolitical terrain remains highly complex. Israel and Turkey, each for their own reasons, are working to block or dilute this process. Recognizing this three-way dynamic is crucial for both analysts and policymakers.

What is at stake is more than a nuclear deal. It is the future of Iran’s international posture: whether it remains boxed in by regional adversaries and their Western allies, or whether it can navigate its way toward a renewed role in shaping a post-Western global order.

The siege on diplomacy is real – but so too is the opportunity for peace it seeks to destroy.

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