The Psychology of Deadlock: How Dual Historical Syndromes Paralyze Iran-U.S. Diplomacy

Since the outbreak of the current war, multiple diplomatic initiatives between the United States and Iran have been launched. Only one—the memorandum of understanding signed in Islamabad on June 18—reached conclusion, yet it collapsed within days.

While conventional analyses attribute these failures to the specifics of the proposals, this examination proceeds from a different premise: the diplomatic impasse is structured by a syndrome that has governed U.S.-Iranian relations for decades.

In international relations, psychological syndromes can emerge from deep crises that imprint themselves on political consciousness and memory, potentially obstructing rapprochement and negotiation between states.

In the case of Iran and the United States, this syndrome comprises two distinct complexes: the complex Washington developed following the 1979 siege of its embassy in Tehran, and the complex Tehran developed from a history of perceived U.S. hostility, culminating in the 2018 withdrawal from the Iran nuclear deal.

The roots of the rupture extend to August 1953, when U.S. and British intelligence agencies orchestrated the overthrow of Prime Minister Mohammad Mosaddegh’s nationalist government after it nationalized the oil industry in 1951. Since then, a perception has solidified in the Iranian consciousness: that Washington refuses to accept an independent government in Tehran and will sabotage any that challenges its interests.

From this vantage point, Washington’s decision to admit the recently deposed Shah Reza Pahlavi for medical treatment in October 1979 was interpreted in revolutionary Tehran as a prelude to a second coup.

Iranian students stormed the U.S. embassy on November 4 of that year, holding 52 Americans hostage for 444 days. Diplomatic relations were severed and have never been restored.

While the Iranian narrative frames the takeover as a defense of the revolution, in the American consciousness it cemented an image of Iran as a state that flouts international norms, whose commitments are unreliable, and whose behavior must not be rewarded.

That is the embassy siege complex. It is less about the incident itself than the informal rule it produced in U.S. decision-making: Iran must concede first, and its concession must be verified before it receives anything in return.

The Iranian complex was shaped by this same history but reached its apex in May 2018, when President Donald Trump withdrew from the Joint Comprehensive Plan of Action (JCPOA) despite the International Atomic Energy Agency’s confirmation of Tehran’s compliance.

Just two weeks later, Secretary of State Mike Pompeo issued 12 demands for a new agreement, only four of which pertained to the nuclear file. The remaining seven targeted Iran’s regional conduct in Lebanon, Palestine, Iraq, Yemen, Syria, Afghanistan, and the Gulf. In effect, Washington not only revoked an existing accord but raised the threshold for any future one.

The knot tightened further in June 2025, when the United States participated in the Twelve-Day War, striking nuclear facilities at Fordow, Natanz, and Isfahan just as a new round of indirect talks was scheduled in Muscat. The breach widened with Washington’s direct participation alongside Israel in the current war.

Consequently, a conviction has entrenched itself in the Iranian consciousness: an American signature guarantees nothing; any agreement can be overturned with a change of administration; and negotiation itself may serve as cover for war rather than an alternative to it.

The informal rule this has produced in Iranian decision-making is that no step will be taken without binding guarantees, and no concession will be offered before pressure is lifted.

Thus, the two complexes stand in direct opposition: the first demands Iranian action before an American quid pro quo; the second demands an American guarantee before Iranian action.

A review of recent negotiation initiatives reveals that every U.S. proposal bears the imprint of the embassy siege complex. The 15-point plan presented in March required the dismantling of the Natanz, Isfahan, and Fordow facilities; an end to uranium enrichment; the suspension of Iran’s missile program; and the abandonment of its regional allies—in exchange for promises of future sanctions relief.

The May draft by White House envoys Steve Witkoff and Jared Kushner linked the release of Iran’s frozen funds to the prior suspension of enrichment. The American response in September similarly stipulated the freezing of enrichment and the admission of inspectors throughout the negotiation period.

What remains constant across U.S. initiatives is that Iranian action precedes the quid pro quo, and verification precedes trust.

The imprint of the JCPOA withdrawal complex is equally constant in Iranian proposals. The five-point response in late March demanded guarantees against a repetition of war. The 10 points put forward in April called for a binding UN Security Council resolution shielding any agreement from unilateral abrogation. The 14 points in May demanded a non-aggression pledge that includes Israel.

Meanwhile, the seven-day plan proposed by Tehran last month stipulated the lifting of sanctions and the U.S. naval blockade before the opening of the Strait of Hormuz on the sixth day and the commencement of nuclear talks on the seventh. Across all Iranian initiatives, the constants are clear: guarantees precede action, and the lifting of pressure precedes concessions.

All these initiatives amount to a dialogue between two complexes, each side drafting its text to insulate itself from a repetition of its historical experience with the other, rather than to meet the other halfway. This may explain why the substantive gap has narrowed, yet the trust gap has not.

The Islamabad memorandum represents the exception that proves the rule: it was the closest moment to a settlement because it was crafted to reassure both sides on their core concerns. To reassure Washington, it mandated the dilution of Iran’s enriched uranium stockpile and made sanctions relief and the unfreezing of funds conditional on Iranian implementation. To reassure Tehran, it provided for an end to hostilities, respect for mutual sovereignty, an implementation monitoring mechanism, and UN Security Council endorsement of the final agreement. Ballistic missiles were entirely absent from the text.

Yet the agreement did not hold. Tehran suspended its participation in the Geneva talks due to the absence of a ceasefire in Lebanon—a consistent demand in every Iranian initiative since March. In Tehran’s reading, Washington’s inability to restrain Israel confirmed that an American signature was insufficient. The JCPOA withdrawal complex reactivated immediately, and both sides returned to square one.

By late September, the dispute appeared to have shifted definitively from substance to sequencing. Informed sources indicated that the contention now revolves around the order of steps rather than their content, with the stated goal a return to an enhanced version of the June memorandum.

Here the two complexes appear in their clearest form: Washington wants the Strait of Hormuz opened and enrichment frozen first because it does not trust Iran; Tehran wants the naval blockade lifted first because it does not trust the United States.

A comparison between Pompeo’s 2018 conditions and the June 2026 memorandum shows that U.S. demands have retreated from redefining Iran’s regional role to focusing on the nuclear file and the Strait of Hormuz, while Iranian demands have shifted from compensation paid by Washington to a conditional investment fund financed by third parties.

In other words, the substantive gap between the two sides has narrowed considerably—a development that would have been unimaginable eight years ago.

However, the two complexes have not diminished; if anything, they have deepened because of the war. Each complex feeds the other until together they form a single syndrome, and diplomatic deadlock has hardened from a passing condition into a stable structure.

Accordingly, any new formula for sequencing steps, however precise, will remain incapable of breaking this deadlock unless it addresses both complexes simultaneously—a task requiring a third party capable of guaranteeing both the action and the reciprocal action at once.

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