Arsenio Dominguez

Arsenio Dominguez stepped directly into the Iran war's sharpest maritime flashpoint on 17 April 2026, publishing a formal IMO statement that invoked UNCLOS and explicitly rejected tolls, fees, or discriminatory transit conditions on the Strait of Hormuz. The statement disclosed 20,000 seafarers and 2,000 vessels trapped in the Persian Gulf and surfaced the 1968 Traffic Separation Scheme, a tripartite framework agreed between Iran, Oman, and the IMO, as the governing legal instrument.

Dominguez, a Panamanian diplomat, was elected IMO Secretary-General in July 2023 and took office on 1 January 2024, succeeding Kitack Lim of South Korea. Before his election he served as Panama's Director-General of Merchant Marine and as IMO Council chair. His first year in post coincided with Houthi attacks on Red Sea shipping and the subsequent Iran blockade, making Hormuz passage the defining challenge of his tenure.

His 17 April statement was the first time the IMO had formally invoked the 1968 Traffic Separation Scheme in the context of the Iran war, giving multilateral legal cover to the 51-nation Strait of Hormuz Maritime Freedom of Navigation Initiative forming in parallel at Northwood. The intervention drew no immediate response from Tehran.