Iran Update Special Report, May 18, 2026

Key Points:

• Iran’s latest nuclear proposal to the US, reported on May 18, lacks commitments to suspend uranium enrichment or hand over its highly enriched uranium stockpile, leading US officials to deem it insufficient and maintain demands for Iran to dismantle nuclear facilities and pause enrichment for 20 years.
• US President Donald Trump canceled a planned military strike on Iran scheduled for May 19 after Gulf leaders from Qatar, Saudi Arabia, and the UAE requested a delay, warning of potential retaliation targeting their energy infrastructure and expressing hope for a diplomatic resolution.
• Iran has established the Persian Gulf Strait Authority (PGSA) to assert control over transit through the Strait of Hormuz, demanding coordination and authorization for passage, which violates the UN Convention on the Law of the Sea provisions guaranteeing free transit through international straits.
• IRGC-affiliated media threaten to impose permits, oversight, and fees on fiber-optic cables passing through the Strait of Hormuz, highlighting the strategic importance of subsea cables for regional and global digital connectivity and warning of economic disruptions if the corridor is disturbed.
• Iran claims “absolute sovereignty” over the seabed and subsoil of its territorial waters to justify control measures, despite international law protections, as part of broader efforts to institutionalize its authority over this critical maritime chokepoint.