US and Iran sign interim pact but leave nuclear terms unresolved

The EU helped coordinate the negotiations that produced the Joint Comprehensive Plan of Action on 14 July 2015. Under that accord, Iran accepted enrichment, stockpile and monitoring constraints in exchange for nuclear-related sanctions relief. President Trump withdrew the United States on 8 May 2018 and restored US sanctions; the EU continued supporting the agreement, but subsequent diplomacy failed to restore full compliance. The June 2026 memorandum followed the war that began with US-Israeli strikes on 28 February and an April ceasefire. Unlike the 2015 accord, the interim memorandum postponed detailed nuclear restrictions and verification arrangements.

Iran demonstrated that control of a maritime chokepoint can compensate for conventional military weakness by imposing costs on the global economy. The United States sought to restore navigation without accepting permanent Iranian authority over Hormuz, while China and other Asian importers remained heavily exposed to Gulf supply. Israel’s exclusion and the unresolved Lebanon front further limited Washington and Tehran’s ability to promise regional peace.

Trump and Pezeshkian signed the memorandum on 17 June after mediators converted an earlier ceasefire into a written framework. Its immediate relevance came from the planned 60-day negotiating window and promised reopening of Hormuz; later fighting made the gap between the document’s ambitions and enforcement impossible to ignore.