HMS Anson is the fifth Astute-class nuclear-powered fleet submarine of the Royal Navy.

She is the eighth vessel of the Royal Navy to bear the name, after Admiral George Anson.

[21] At the beginning of February, the submarine docked for the first time in the Port of Gibraltar to load weapons.

The main limit is that the submarine will only be able to carry three months' supply of food for 98 officers and ratings.

[22] The submarine will be capable of using Tomahawk Block IV land-attack missiles with a range of 1,000 miles (1,600 kilometres)[23] and Spearfish heavyweight torpedoes.