Iranian Foreign Minister Abbas Araghchi arrived in Islamabad on Friday evening carrying Tehran’s written response to American proposals, signalling a last-ditch attempt to rescue a foundering diplomatic track. Three Pakistani government sources confirmed that a US logistics and security team was already in place, and that Araghchi, accompanied by a lean delegation, could stay through the weekend for a second round of direct US–Iran negotiations mediated by Pakistan. The disclosure came days after a planned Tuesday session collapsed when Iran declined to show, and hours after President Trump predicted talks could resume within thirty-six to seventy-two hours.

Viewed from Washington, the moment is freighted with both threat and incentive. Defence Secretary Pete Hegseth told reporters that Iran had a chance to make a “good deal”, even as the Pentagon confirmed the deployment of a third carrier strike group to the Middle East. The US side is expected to field special envoy Steve Witkoff and possibly Jared Kushner, though the White House has refused to confirm travel plans. After extending a fragile ceasefire, American officials are structuring the Islamabad channel as a time-bound test of Tehran’s willingness to engage, aware that the earlier postponement left Vance’s delegation stranded in the capital. Analysts in Washington see the military buildup less as a precursor to hostilities than as leverage to force Iran’s hand, but the balance is delicate.

From Tehran, the choreography is more opaque. Araghchi’s onward itinerary to Muscat and Moscow – described by state media as a “timely tour” – underlines Iran’s insistence on coordinating with its principal backers before making any concession. The foreign minister cast the trip as devoted to “bilateral consultations and regional events”, framing neighbours as a priority, yet the written reply in his briefcase signals a substantive shift. Two senior Iranian officials told The New York Times that the document responds to American ideas for a comprehensive settlement. Publicly, Tehran maintains it will not negotiate under the shadow of US military pressure; privately, its decision to dispatch a foreign minister rather than the parliament speaker, Mohammad Bagher Ghalibaf, who led the first round in early April, suggests a controlled calibration – elevating the talks’ diplomatic weight while keeping political figures at arm’s length.

Islamabad has positioned itself as an indispensable mediator, hosting parallel logistics for both adversaries. Araghchi is scheduled to meet Prime Minister Shehbaz Sharif and army chief General Syed Asim Munir, reinforcing the military–civilian consensus behind the initiative. Pakistani officials, speaking anonymously, describe the arrangement as a hedge against a wider regional conflagration that would imperil the country’s own security and economic interests. The presence of American advance teams on Pakistani soil – a politically sensitive fact in a country where anti-American sentiment runs deep – indicates the level of trust Islamabad has managed to cultivate with both sides, even if the ultimate success of the talks remains uncertain.

Analysts in London note that the simultaneous Russian and Omani stops reflect Iran’s need to insulate itself from a process in which it holds few strong cards. Moscow, whose own relationship with Washington is shifting, may urge restraint while extracting its own dividends; Muscat, a perennial back channel, can preserve plausible deniability. The coming forty-eight hours will reveal whether Araghchi’s written reply is a starting point for a roadmap – perhaps on enriched uranium stockpiles and sanctions relief – or a tactical holding measure. With the third carrier group now moving into the region, the window for diplomacy is narrowing, and all sides know it.