Iran has threatened to block the Strait of Hormuz, which served as the conduit for 17 millions barrels of oil every day last year.
Naval commanders believe the deployment of HMS Daring, a Type 45 destroyer, will send a significant message to the Iranians because of the firepower and world-beating technology carried by the warship.
Philip Hammond, the Defence Secretary, has publicly warned Iran that any blockade of the Strait of Hormuz would be "illegal and unsuccessful".
The Daily Telegraph understands that HMS Daring has been fitted with new technology that will give it the ability to shoot down any missile in Iran's armoury. The £1 billion destroyer, which will leave Portsmouth next Wednesday, also carries the world's most sophisticated naval radar, capable of tracking multiple incoming threats from missiles to fighter jets.
Daring, with its crew of 190, will transit through the Suez Canal and enter the Gulf later this month to replace the Type 23 frigate currently on station.