Military of The Falkland Islands - Royal Navy

Royal Navy

RAF Mount Pleasant has its own port facility called Mare Harbour, and the Royal Navy maintains a presence in the area with a frigate or guided missile destroyer accompanied by an RFA vessel in the South Atlantic and a patrol ship permanently close to the islands. In addition, an Ice Patrol Ship, HMS Protector, is on station close to Antarctica for six months of the year.

The warship and RFA vessel carry out the Atlantic Patrol Task (South) mission which "provides a maritime presence to protect the UK's interests in the region". The Type 42 destroyer HMS Edinburgh took over the South Atlantic Patrol Task in October 2006, replacing HMS Southampton. Prior to Southampton's deployment in August 2005 the role was filled by HMS Cardiff, which was decommissioned on return to the UK. As of February 2010, the on-station warship was the Type 42 destroyer HMS York. In late April 2010, HMS York was relieved by the Type 23 frigate HMS Portland. In August 2010, HMS Portland was relieved by the Type 42 destroyer HMS Gloucester. On 21 April 2011, HMS York arrived at the East Cove Military Port in the Falkland Islands, beginning patrol duties for the islands. October 2011 saw the arrival of Type 23 frigate HMS Montrose, generating a statement from UNASUR (Union of South American Nations). Type 45 Guided Missile Destroyer HMS Dauntless will replace HMS Montrose as of April 2012.

The Falkland Islands Patrol ship is a River class patrol vessel, which replaced the previous Castle class patrol vessel. In 2007 HMS Clyde relieved HMS Dumbarton Castle and HMS Leeds Castle. It is planned that she will stay permanently in the South Atlantic until 2012.

The Royal Navy also has Trafalgar and Astute class nuclear submarines that it can deploy to the area, though such deployments are classified. The threat from submarines to hostile ships was demonstrated during the Falklands War when HMS Conqueror sank the Argentine cruiser ARA General Belgrano. The Royal Navy's submarines also carry BGM-109 Tomahawk cruise missiles which have a range of 1,500 miles (2,400 km) and can strike at targets within an enemy country. The Sun newspaper has speculated that a Swiftsure class attack submarine, HMS Sceptre, was sent to the islands in March 2010. In February 2012, a Trafalgar -class nuclear submarine may be deployed to the Falkland Islands.