The Iran-U.S. ceasefire was brokered by Pakistan. The talks in Islamabad — the highest-level U.S.-Iran discussions since the 1979 Revolution — ran 21 hours before JD Vance announced they had produced no agreement. Pakistan has since stood down the security apparatus it assembled for those talks, signaling that resumption is not imminent. But Pakistan’s role in the negotiation structure did not end when the talks stalled. As long as the mediation channel remains open, Pakistani intelligence — the Inter-Services Intelligence directorate — is positioned as a collection and communication node between two adversaries who have no direct channel of their own.