Iran's Army Chief of Staff says the Strait of Hormuz is closed; passage must be coordinated, IRIB reports

Threats against the Strait of Hormuz have been a recurring instrument of Iranian signalling across past rounds of tension, and the historical pattern is that full closure has been declared or threatened far more often than actually enforced, since Tehran itself depends on the waterway for its own exports. The operative distinction is between a rhetorical declaration and physical interdiction: prior episodes have tended to play out through harassment, seizures, and the requirement of escort or coordination rather than a durable shutdown, which is what the 'passage must be coordinated' phrasing here resembles. The transmission channels that have historically moved on such headlines are crude freight and insurance costs first, with war-risk premia on Gulf transits repricing faster than the flat oil price, and tanker availability tightening as owners reassess. The tagged insurance read-across runs through marine and war-risk underwriters rather than the listed personal-lines names, which carry little direct Gulf exposure. Follow-ons worth noting are whether commercial traffic actually halts or reroutes, any confirmation from shipping or naval sources beyond the state broadcaster, and whether the US Fifth Fleet or regional navies respond, since on previous occasions the gap between declaration and enforcement has been the tell.