With US-Iran trust broken again, can Pakistan bring them back to talks?

Islamabad, Pakistan – A wooden panelled bookshelf behind him, Pakistani Prime Minister Shehbaz Sharif signed the memorandum of understanding (MoU) between the United States and Iran, aimed at extending their ceasefire by creating a pathway towards long-term peace.

Sharif then held up the document for the cameras. That was June 17, the high point of a frenzied diplomatic effort led by Pakistan spanning weeks, which had culminated in the MoU that Sharif signed as a mediator.

Recommended Stories

• list 1 of 4What is Iran’s Strait of Hormuz protocol and will other nations accept it?
• list 2 of 4Iran attacks five Gulf nations, shuts Hormuz after US bombing: All to know
• list 3 of 4US launches new wave of strikes against Iran, aimed at ‘degrading’ military
• list 4 of 4March to July: What’s different as US-Iran fighting escalates again?

Yet less than four weeks later, Pakistan’s Ministry of Foreign Affairs has, in just the past few days, issued two statements expressing “deep concern” over renewed US-Iran hostilities, with the MoU Islamabad had helped pull together seemingly in shreds.

On Monday morning, the US launched the latest in a series of attacks on Iran, which responded by firing missiles and drones at multiple Gulf and Arab nations that it blamed for hosting US military bases.

Hours later, Iranian Foreign Ministry spokesman Esmaeil Baghaei told reporters that mediators, including Pakistan, Qatar and Oman, remained engaged and were continuing their efforts, even as he warned that Iran would continue responding to what it viewed as US non-compliance with the MoU.

So far, those efforts have failed to slow down the fighting, even as Pakistan has pressed on with diplomatic outreach.

On Sunday, Deputy Prime Minister and Foreign Minister Ishaq Dar spoke by phone with Iranian Foreign Minister Abbas Araghchi, telling him that dialogue and diplomacy remained “the only viable path” to resolving the crisis.

Prime Minister Shehbaz Sharif also spoke to Iranian President Masoud Pezeshkian on Friday, warning that “hard-earned” peace gains were at risk, while Dar held a separate call on Saturday with Saudi Foreign Minister Prince Faisal bin Farhan Al Saud.

To many analysts, one question, above all, now stares at Pakistan and other mediators like Qatar: With the deep distrust between the US and Iran only further expanding following the new bout of fighting, can Islamabad or any other capital once again bring Washington and Tehran back to the negotiating table?

Repeated breakdowns

The renewed fighting marks at least the third occasion since the US-Iran ceasefire signed on April 8 appeared to have collapsed.

Days after that truce was agreed on, the breakdown of the first round of Islamabad talks led to the US imposing a naval blockade on Iranian ships in the Strait of Hormuz. The US and Iran both attacked ships in the days that followed.

Then, after the MoU was signed on June 17, Iran attacked several ships that it claimed were passing through the Strait of Hormuz without its permission, prompting another escalation with Washington.

But the Iranian tanker strikes last week appear to have raised tensions to new heights.

US attacks on Iran since then have hit at least 10 provinces, killing a soldier, several fishermen in the southern province of Hormozgan, and a firefighter in Sistan and Baluchestan, according to Iranian authorities.

A railway bridge on a trade corridor linking Iran with Central Asia and China was also struck, along with a bridge near Mashhad used by mourners travelling to former Supreme Leader Ayatollah Ali Khamenei’s funeral.

The renewed hostilities have also pulled Qatar, a fellow mediator alongside Pakistan, more directly into the conflict. On Sunday, Iranian missiles and drones hit the Gulf state, with debris from interceptions injuring three people, including a child, according to Qatar’s Ministry of Interior.

Iran’s Ministry of Foreign Affairs has accused Washington of violating “nearly all parts” of the June agreement within 25 days of its signing, citing attacks on transport infrastructure and fishing vessels.

Baghaei said on Monday that Iran had “acted in good faith” throughout, but that “each time the other party has failed to meet its obligations, we did not uphold ours, and we will continue to act in this manner.”

Since the war began on February 28, Islamabad has played the role of mediator.

It hosted talks in April, the first time in four decades that US and Iranian officials sat in a room together.

Its army chief and interior minister have travelled to Tehran several times. In late March, Pakistan also helped secure a Chinese-backed peace framework alongside its own diplomatic efforts.

In June, it helped produce the MoU signed by Pezeshkian and US President Donald Trump, along with Pakistani Prime Minister Shehbaz Sharif, which was then discussed at the Burgenstock summit in Switzerland.

Yet analysts say Pakistan lacks the means to enforce the agreements it helps broker.

Javad Heiran-Nia, director of the Persian Gulf Studies Group at the Center for Scientific Research and Middle East Strategic Studies in Tehran, said the MoU was never intended to resolve the underlying dispute.

“The MoU deferred key and substantive issues to future negotiations and functioned primarily as a tactical instrument to halt hostilities and reopen the Strait of Hormuz to international shipping,” he told Al Jazeera.

Iran, he said, sees control of the waterway as “a strategic asset; not merely a coercive lever, but a deterrent tool”, and appears “prepared to accept the risk of war to preserve this strategic advantage”.

Mediators, he added, lack the instruments to resolve the dispute “unless a shift in the balance of power between Iran and the United States emerges as a result of limited military engagements”, pointing to a potential US naval blockade as one of the few developments that could alter the strategic calculus.

Dania Thafer, executive director of the Gulf International Forum in Doha, said Pakistan’s room for manoeuvre had narrowed as both sides hardened their positions over the strait.

“Pakistan is in a situation where it is highly dependent on both parties, as it always has been, but right now, Iran is bent on establishing its control over the Strait of Hormuz,” she told Al Jazeera.

According to Thafer, there is little Pakistan can do to de-escalate while both Washington and Tehran remain in “an escalatory phase”.

“Once they feel they have reached a point where the balance tips in favour of one side or the other, then perhaps they will return to the negotiating table,” she added.

But Qamar Cheema, head of the Islamabad-based Sanober Institute, pushed back on the idea that Pakistan is operating without real tools.

He pointed to US Vice President JD Vance’s recent remarks, where he credited Pakistani Field Marshal Asim Munir’s role in the process, as evidence that Islamabad’s military-diplomatic channel carries real weight in Washington.

Access itself, he argued, is the instrument.

“Pakistan enjoys trust, and that’s why both sides pick up the phone and call Pakistani leadership any time to remove a stumbling block,” Cheema told Al Jazeera.

Crowded diplomacy, narrowing options

But Pakistan has not been the only diplomatic channel, and according to Heiran-Nia, the dispute over the strait was never really Islamabad’s to mediate.

“Iran had previously removed the Strait of Hormuz issue from Pakistan’s mediation agenda, as the matter was essentially bilateral between Tehran and Muscat,” he said.

Tehran, he explained, did not want the issue to be “defined within a broader negotiation package under Pakistani auspices, which would have afforded Washington room for political manoeuvre”.

Direct Iran-Oman talks followed, but “US military pressure and economic sanctions threats against Oman have placed Muscat under considerable strain, preventing meaningful progress,” according to the Tehran-based analyst.

Meanwhile, he cautioned that Sunday’s attacks on Qatar “could have adverse effects on Qatar’s mediatory role”, although Doha “does not currently appear inclined to withdraw”, adding that “Iran should not assume that Doha’s patience is limitless.”

Mustafa Hyder Sayed, executive director of the Pakistan-China Institute in Islamabad, described the GCC states as caught in an uncomfortable position.

“The GCC countries are caught between the devil and the deep blue sea. They want a functional relationship with Iran while not openly declining the use of their bases and territory by the United States, because they understand they cannot choose their neighbours,” he told Al Jazeera.

Meanwhile, Israel, which is not a party to the MoU, has continued military operations in Lebanon, which Tehran cites as an ongoing violation of the agreement.

Israeli Defence Minister Israel Katz said on Saturday that southern Lebanon “would become Gaza”, raising the prospect of further regional escalation.

Who blinks first?

Despite a week of escalating attacks, the core dispute remains unchanged.

Pakistani army chief Field Marshal Asim Munir meets the president of Iran, Masoud Pezeshkian, in Rawalpindi, Pakistan, June 23, 2026 [Handout/Inter-Services Public Relations via Reuters]

Washington and Tehran remain divided over the same issue that stalled negotiations even before the latest round of fighting: Who controls passage through the Strait of Hormuz, and under what conditions?

Iran insists the MoU gave it authority over transit through the waterway. The US disputes that.

On Monday, Trump announced that the US was reinstating a naval blockade of Iranian ships and would charge a 20 percent tariff on all other ships trying to pass through the strait.

Yet, earlier, a possible compromise had briefly emerged.

Heiran-Nia said the parties explored a formula under which commercial vessels would coordinate passage with both Iran and a designated Arab Gulf state, allowing “both parties [to] claim a degree of victory”.

The talks stalled before reaching a conclusion, however, interrupted by the funeral of Iran’s former Supreme Leader Ayatollah Khamenei, who was killed on the first day of the war in joint US-Israeli air strikes.

The conflict has since moved in the opposite direction, with military action aimed at shifting the balance of power rather than reviving negotiations.

“The prevailing trajectory now is the continuation of military strikes in an effort to shift the balance of power. Yet, there remains a risk that strategic calculations on either side could spiral beyond control,” Heiran-Nia said.

Thafer believes that, despite the violence, neither side has formally abandoned the MoU.

“Iran is framing this current round of escalation as a violation of the MoU rather than a reason to exit it, which means there could still be light at the end of the tunnel,” she said.

In her assessment, both sides bear responsibility for violating the agreement, from Iran’s attacks on shipping to Washington’s revocation of Iran’s oil sale licence and the military attacks. Yet the agreement remains, at least formally, in place.

Its future, she said, depends on which side ultimately gives ground over the strait. Iran retains what Thafer described as a “snapback capability” to disrupt shipping whenever it chooses.

“It is, militarily, very difficult to fully neutralise that Iranian capability. We will have to wait and see where the leverage finally sits,” she said.

Cheema, for his part, argued that Iran’s own conduct, more than any mediator’s diplomacy, is what will decide how this settles.

“Iranian authorities seem ambitious and aggressive, and are looking to take risks to project power, which makes it less likely that any agreement will reach a final conclusion. That means interventions from mediators will keep coming.”