Economy of Devon (chewing gum) and HMNB Devonport (the largest naval base in western Europe) are in Plymouth. Torquay was home to Beverage Brands, the producers of WKD Original Vodka. Britannia Royal Naval College is at Dartmouth. Mining for tin and copper was carried on in Devon from ancient times until the 1930s: see Dartmoor tin-mining. Agriculture has been an important industry in South West England since the 19th century: approximately 80% of land in the South West of England is in agricultural use (19.6% of England's total). In the later 19th and early 20th centuries there were a number of potteries in
Structure of the Royal Navy in 1989 affiliated with universities and in 2018 were under the jurisdiction of the Commodore, Britannia Royal Naval College. 14 URNUs had been founded in 1967 and the late 1980s each URNU received one Archer class patrol vessel as dedicated training vessel. However, as four of the 14 Archer vessels went to the Royal Naval Auxiliary Service it is unclear how many URNUs were still active in 1989. The Flag Officer Reserves was a Rear Admiral based in Whitehall, who was responsible for recruitment and training of the Royal Naval Reserve. Each Royal Naval Reserve Division had one River-class minesweeper from the