U.S.-Iran tensions have flared again this week as American aircraft struck bridges in Iran’s Hormozgan province and Tehran retaliated by firing missiles and drones toward Bahrain and Kuwait. The renewed hostilities have shattered the interim cease‑fire that was brokered last month, putting the vital Strait of Hormuz and global energy supplies at heightened risk.

Background of the US‑Iran Standoff

Since the February 2024 joint U.S.–Israel operation against Iranian facilities, Tehran has repeatedly threatened to shut the Strait of Hormuz, a chokepoint through which roughly a fifth of the world’s oil passes. The closure in early 2024 sent oil prices soaring and gave Iran leverage in diplomatic negotiations. While both sides have engaged in limited air raids and drone strikes since then, the conflict has now expanded beyond the Iranian mainland.

Collapse of the Interim Cease‑Fire

The cease‑fire signed in May was intended to keep commercial shipping lanes open and limit civilian casualties. However, the United States launched a second wave of strikes on Thursday night, aiming to “further degrade” Iran’s military capabilities, while Iran responded with a barrage of missiles that hit Bahrain, Kuwait, and even Jordan, according to regional authorities.

New Fronts: Bahrain and Kuwait

Iranian state media reported that at least three people died in U.S. strikes on bridges, and that Iranian missiles and drones struck targets in Bahrain and Kuwait, causing injuries but no confirmed fatalities. Colonel Ebrahim Zolfaghari of Iran’s Khatam al‑Anbiya Central Headquarters warned that any further U.S. attacks on Iranian bridges or power plants could trigger “broad attacks on all the infrastructure in the region.” He described the Strait of Hormuz as Iran’s “invincible red line.”

Impact on Global Shipping and Oil Markets

Lloyd’s List Intelligence data shows a near‑quarter drop in cargo movements through the Strait at the start of the month, even before the latest escalation. Some oil shippers have turned off AIS tracking devices, while others have halted voyages altogether. Experts caution that continued escalation could push oil prices into double‑digit growth again.

What Lies Ahead?

U.S. Central Command said it disabled a Curacao‑flagged oil tanker after it ignored multiple warnings, and redirected three commercial vessels attempting to breach the blockade. The United States maintains that the Strait remains “free and open” except for vessels that violate its “steel wall” blockade, yet re‑opening the waterway by force would require a substantially larger naval presence and possibly tens of thousands of ground troops. With the cease‑fire broken, the region faces a widening conflict that could reshape Middle‑East power dynamics.