What to know about naval blockades as U.S. patrols Strait of Hormuz : NPR

Meanwhile, President Trump has made clear that stopping all shipping to and from Iran is aimed at strangling Iran's ability to export petroleum. The administration labels the pressure tactic as a blockade — though Bryan Clark, a senior fellow at the Hudson Institute, argues it's more of a naval quarantine, because "the U.S. is only stopping traffic that's coming from Iran."…

 https://www.npr.org/2026/04/16/nx-s1-5783870/strait-of-hormuz-naval-blockade