The United States and Iran Agree to End War – SITREP #40: June 18, 2026

ZeroFox Intelligence Flash Report - SITREP #40 - The United States and Iran Agree to End War - June 18, 2026

Product Serial: F-2026-06-18a

TLP:CLEAR

In this Flash report, ZeroFox researchers cover the Memorandum of Understanding (MOU) ending the war in Iran.

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Key Findings

• U.S. President Donald Trump and Iranian President Masoud Pezeshkian signed a Memorandum of Understanding (MOU) on ending the war. The final terms strongly align with those previously outlined in ZeroFox’s SITREP report dated May 28, 2026.
• The MOU establishes a timeline for future talks on Iran’s nuclear program and sanctions relief, despite both sides almost certainly holding fundamentally different positions on most issues. It mandates a 60-day ceasefire extension to facilitate talks and the reopening of the Strait of Hormuz (SoH)—a timeline almost certain to be extended given the anticipated difficulty of negotiations.
• A durable solution regarding Israeli operations in Lebanon remains very unlikely as it necessitates that Iran restrain Hezbollah and the United States curb Israel. Along with divergent interpretations of the SoH reopening and sanctions relief, this impasse poses the primary short-term risk of conflict resurgence during the 60-day negotiation period.