IRGCN Interaction with U.S. Naval Vessels in the North Arabian Gulf

At approximately 8 p.m. on April 26, three Iranian Islamic Revolutionary Guard Corps Navy (IRGCN) fast inshore attack craft (FIAC) failed to exercise due regard for the safety of other vessels as required under international law as they came into close proximity to U.S. naval vessels in international waters of the north Arabian Gulf.

The IRGCN armed speed boats rapidly approached U.S. Navy patrol coastal ship USS Firebolt (PC 10) and U.S. Coast Guard patrol boat USCGC Baranoff (WPB 1318) to an unnecessarily close range with unknown intent, including a closest point of approach (CPA) of 68 yards to both U.S. ships.

Firebolt and Baranoff were conducting routine maritime security operations in international waters during the time of the incident.

The U.S. crews issued multiple warnings via bridge-to-bridge radio and loud-hailer devices, but the IRGCN vessels continued their close range maneuvers. The crew of Firebolt then fired warning shots, and the IRGCN vessels moved away to a safe distance from the U.S. vessels.

Throughout the interaction, U.S. forces proactively communicated with the IRGCN vessels and executed pre-planned responses to reduce the risk of miscalculation, avoid a collision, and to de-escalate the situation.

The IRGCN’s actions increased the risk of miscalculation and/or collision, were not in accordance with the internationally recognized Convention on the International Regulations for Preventing Collisions at Sea (COLREGS) “rules of the road” or internationally recognized maritime customs. In addition, the IRGCN actions were not in accordance with the obligation under international law to act with due regard for the safety of other vessels in the area.

U.S. naval forces continue to remain vigilant and are trained to act in a professional manner, while our commanding officers retain the inherent right to act in self-defense.

The Firebolt and Baranoff crews operated with distinct professionalism, superior seamanship and dispassionate yet firm resolve.

As professional mariners, we expect the IRGCN to operate with due regard for the safety of all vessels as required by international law.

The U.S. is not an aggressor; our naval forces remain postured in a non-provocative manner that exemplifies professionalism, incentivizes adherence to international law and customs, and persuades others to emulate our actions. Our forces are trained, however, to conduct effective defensive measures when necessary.