Iran Threatens to Attack US Forces in Hormuz; 'Project Freedom' Naval Escort Operations Begin — Ceasefire at Risk

On May 4, 2026 (Day 65 of the US-Iran ceasefire period), Iran issued a stark military warning in direct response to Trump's 'Project Freedom' announcement: 'Any foreign armed forces, especially the aggressive US army, will be attacked' if they attempt to guide ships through the Strait of Hormuz. IRGC Navy commanders stated that commercial traffic must proceed only with Iranian coordination and authorization — effectively demanding that the US Navy defer to IRGC permission before escorting any vessel. Iran's IRGC positioned additional fast attack boats and anti-ship missile batteries near the strait's northern chokepoint. US Navy guided-missile destroyers began positioning for escort operations on May 4, with the USS Abraham Lincoln carrier strike group reported by CNN to have moved into the Arabian Sea. Trump held firm against Iran's warning, calling it 'just words' and stating Project Freedom would proceed as planned. The standoff created the highest military tension between US and Iranian forces since the April 7 ceasefire took effect — with both sides deploying active forces to the same 21-mile-wide body of water. Brent crude climbed sharply above $105/barrel on news of the confrontation, with analysts warning US national gas prices could exceed $4.50/gallon. Defense experts warned the situation risked 'miscalculation' or unintended engagements that could restart full-scale hostilities and collapse the ceasefire. The US had previously issued General License U (March 2026) authorizing Iranian tankers to transit Hormuz under sanctions waiver — a waiver Iran now sought to flip into a broader veto over all Hormuz traffic.