Hormuz blockade escalation
Experts note Iran can’t legally charge tolls in the Strait of Hormuz the way a sovereign charges a canal, because natural straits are governed differently under maritime law. (gulfnews.com) President Trump announced a U.S. blockade aimed at pressuring Iran after talks failed, according to reporting this week. (nytimes.com) Media outlets also reported a U.S. threat that ships challenging the blockade could be “immediately ELIMINATED,” raising political and insurance uncertainty for maritime traffic. (politico.com)
President Donald Trump said the United States has begun a naval blockade in the Strait of Hormuz after weekend talks with Iran failed. (time.com) Trump announced the move on Sunday, April 12, saying the United States Navy would block ships trying to enter or leave the strait; Bloomberg reported the blockade began on Monday, April 13. (time.com) (bloomberg.com) Politico reported on April 13 that Trump also warned ships approaching the blockade could be “immediately ELIMINATED,” adding a direct military threat to a commercial shipping lane. (politico.com) The waterway is a natural strait, not a man-made canal, and that legal distinction shapes what coastal states can demand from passing ships. Under Part III of the United Nations Convention on the Law of the Sea, ships and aircraft have a right of “transit passage” through straits used for international navigation. (un.org) (gulfnews.com) Gulf News reported that experts do not view Hormuz like the Suez Canal, where Egypt charges transit fees as the operator of a man-made route. In Hormuz, bordering states can regulate safety and traffic, but they cannot simply turn passage into a toll road for ordinary transit. (gulfnews.com) (un.org) That legal fight now sits inside a military one. Politico reported that the blockade would target ships that left or planned to enter Iranian ports, as well as ships alleged to have paid Iranian tolls, raising questions about boarding, inspection, and proof at sea. (politico.com) The stakes are global because Hormuz remains one of the world’s main oil chokepoints. The United States Energy Information Administration said flows through the strait in 2024 averaged 20 million barrels a day, about 20 percent of global petroleum liquids consumption, and roughly one-fifth of global liquefied natural gas trade also passed through it. (eia.gov) Even before full enforcement details were public, the shipping picture was already shifting. The New York Times reported that two Iranian-linked ships exited the Persian Gulf hours before the blockade took effect, citing Kpler ship-tracking data. (nytimes.com) Politico reported that diplomats and officials were questioning whether the United States Navy has enough assets to interdict large numbers of foreign-flagged vessels in such a crowded corridor, especially if Iran allows more ships through to complicate enforcement. (politico.com) Lloyd’s List reported this week that shipping flows through Hormuz had already fallen further as Iran imposed new transit rules and threats of force. The next test is whether shipowners, insurers, and foreign governments treat Trump’s blockade as a temporary warning or the start of a longer disruption in the Gulf. (lloydslist.com)
