MANAMA, July 6 — The gray hulls of U.S. Navy destroyers sit in the heat haze off Bahrain, a quiet show of force in waters that have become a chessboard for two very different navies. Vice Admiral George Wikoff commands the U.S. Naval Forces Central Command and the Fifth Fleet from this island kingdom. His opposite number, across the Gulf in Iran, is Rear Admiral Alireza Tangsiri of the Islamic Revolutionary Guard Corps Navy.
The IRGC Navy does not answer to Iran’s regular navy. It reports directly to Supreme Leader Ali Khamenei.
That chain of command matters on the water. The IRGC operates its own fleet of fast attack craft, small and agile. U.S. commanders have long viewed these vessels as the most immediate threat to commercial shipping in the region.
By nightfall, the Fifth Fleet’s patrols continue their rotations through the Persian Gulf, the Gulf of Oman, and the Arabian Sea. These are the waters where tankers carry a fifth of the world’s oil.
The U.S. presence here is not new, but the strategic calculus has shifted. The International Maritime Security Construct, or IMSC, was established in 2019 to pool allied naval resources. The UK and Australia are among the partners.
The arrangement allows for shared patrols and a coordinated response if a commercial vessel comes under threat. Residents in Manama describe the American naval base as a constant hum of activity. Helicopters lift off and land throughout the day.
Supply ships dock and depart. The base is the nerve center for all U.S. naval operations in this stretch of sea.
Tensions have flared before. In recent years, IRGC vessels have approached U.S. warships at high speed, forcing evasive maneuvers. Each incident gets logged, reported up the chain, and factored into the next patrol rotation.
The IRGC Navy operates independently from Iran’s regular navy. This dual structure can create confusion for outside observers, but it is deliberate.
The IRGC answers to the clerics, not the generals. Its commanders are ideologically committed, and its tactics are designed for asymmetric warfare. What comes next is uncertain.
The Fifth Fleet maintains its watch. The IMSC allies keep their ships ready. On the Iranian side, Rear Admiral Tangsiri’s fast boats remain in port, but no one on the U.S. side assumes they will stay there.
