Prince William is being deployed to the Falkland Islands to which the Argentineans have said he will be wearing the uniform of a conqueror.
HMS Dauntless will set sail for the Falkland Islands in the coming weeks armed with a battery of missiles that could "take out all of South America's fighter aircraft let alone Argentina's," according to one Navy source.
The Type 45 destroyer is the most advanced anti-aircraft and anti-ballistic ship in the world equipped with 48 Sea Viper missiles and the Sampson radar, which is more advanced than Heathrow air traffic control
The ship is in a league of its own in air defence able to track dozens of multiple targets
"It can shoot down Argentine fighters as soon as they take off from they bases," said another Navy source. "This will give Buenos Aires serious pause for thought."
The deployment, expected in late March, comes as Argentina has stepped up its sabre rattling over possession of the islands with a ban on all Falkland registered ships in South American ports.
David Cameron has responded that the sovereignty of the islands is not for negotiation.
Sending the £1 billion Dauntless on her first mission to the area will reinforce Britain’s position although it will cause difficulties for the Foreign Office which is trying to downplay the rhetoric.
Admiral Lord West, the former First Sea Lord and Falklands veteran, said the Type 45 has an “amazing anti-air warfare capability.”
He also sent a warning to the Buenos Aires government. “Should there be any foolish nonsense from Argentina, Dauntless can sit just off the airfield and take down any aircraft coming in. It’s a game-changing capability.”
A Navy Spokesman said: “The Royal Navy has had a continuous presence in the South Atlantic for many years. The deployment of HMS Dauntless to the South Atlantic has been long planned, is entirely routine and replaces another ship on patrol."
Dauntless will replace the ageing Type 23 frigate Montrose.
Earlier this month the Navy sent Daring, the first Type 45, to the Arabian Gulf as tensions with Iran increase.