A critical disruption in maritime traffic through the Strait of Hormuz, the narrow waterway linking the Persian Gulf to the Arabian Sea, where shipping volumes drop to near zero due to geopolitical tensions, blockades, or military actions, as seen in the April 2026 Iran-U.S. ceasefire aftermath.

A term describing the effective halt of commercial vessel passages in the Strait of Hormuz, impacting global oil supplies and causing tanker backlogs, often amid warnings from Iran to adhere to designated lanes.

Colloquial reference to the paralyzed state of shipping in the world's most vital oil chokepoint, where pre-conflict daily transits of dozens of tankers plummet to a handful or fewer.