IRGC warns approaching vessels

Iran’s Islamic Revolutionary Guard Corps said on Sunday, April 12, that any military vessel approaching the Strait of Hormuz would be treated as a breach of the two-week United States-Iran ceasefire. (al-monitor.com) The warning, carried by Iranian state media and reported by Reuters, said the waterway remains open for non-military shipping under “specific regulations” and under what the Guards called Iran’s “smart management.” (msn.com) The statement landed four days after the ceasefire was announced on April 8, and after commercial traffic through the strait stayed far below prewar levels. CBS News reported that only about a dozen ships crossed in the first two days of the truce. (cbsnews.com) Shipping companies have not treated the ceasefire as a return to normal operations. Maersk said on April 8 that the truce could create some openings for transit, but “did not yet provide enough security certainty” to resume normal sailing patterns. (maersk.com) The Strait of Hormuz is the only sea exit from the Persian Gulf, and the numbers explain why every warning there moves markets and militaries. The U.S. Energy Information Administration said roughly 20 million barrels a day moved through the passage in 2024, equal to about one-fifth of global petroleum liquids consumption. (eia.gov) The channel is narrow enough that naval signaling can change behavior quickly. The International Energy Agency says the strait’s navigable lanes are two miles wide in each direction, separated by a two-mile buffer zone. (iea.blob.core.windows.net) Iran sits on the north side of the chokepoint, but the legal picture is more complicated than a single-country claim. Encyclopaedia Britannica says the shipping lanes lie mostly in Omani territorial waters and are governed by international maritime law. (britannica.com) The United States keeps major naval infrastructure nearby in Bahrain, where the Navy says the Fifth Fleet and Naval Forces Central Command direct operations across the region. Bahrain also hosts the U.S.-led maritime coalitions that patrol for freedom of navigation and commercial security. (navsea.navy.mil) That leaves the current dispute centered on a basic question with military consequences: whether outside warships can approach a waterway Iran says it is regulating while a ceasefire is still in force. For now, the public signal from Tehran is that civilian passage may continue, but armed approaches will draw a response. (wsj.com)