President Donald Trump has announced that the US Navy will escort commercial ships through the Strait of Hormuz, one of the world's most critical oil shipping corridors. The move comes as tensions with Iran escalate, with Tehran warning that any foreign armed force that approaches or enters the strait will face attack.

The Strait of Hormuz sits between Iran and Oman at the mouth of the Persian Gulf. Roughly 20% of the world's oil supply passes through it, making it a pressure point that can move global energy markets almost immediately. A disruption there affects fuel prices, shipping insurance costs, and supply chains far beyond the Middle East.

What Each Side Is Doing

Trump's order puts US Navy vessels in an active escort role for ships described as stranded or unable to transit safely. This is a significant operational step — it moves the US military from a monitoring posture to one where it could be directly interposed between commercial vessels and Iranian forces.

Iran's response has been direct: any foreign armed force near or inside the strait will be attacked. That warning, if acted on, would put Iranian and American military assets in close proximity under hostile rules of engagement — a scenario with obvious escalation risk.

What This Means for Markets and Trade

Oil markets watch the Strait of Hormuz closely because there is no easy alternative route for most Persian Gulf crude. A genuine blockade or sustained military confrontation there would tighten global oil supply quickly. Shipping insurers would raise war-risk premiums, making freight costs jump across energy and goods markets.

For now, the immediate consequence is a sharper military standoff at one of the world's busiest chokepoints. The key things to watch: whether Iran acts on its threat when US escorts begin operating, how other Gulf exporters — particularly Saudi Arabia and the UAE — respond, and whether crude futures price in a sustained risk premium.