Royal Navy Navy currently operates from three bases in the United Kingdom where commissioned ships are based; Portsmouth, Clyde and Devonport, Plymouth—Devonport is the largest operational naval base in the UK and Western Europe. Each base hosts a flotilla command under a commodore, or, in the case of Clyde, a captain, responsible for the provision of operational capability using the ships and submarines within the flotilla. 3 Commando Brigade Royal Marines is similarly commanded by a brigadier and based in Plymouth. Historically, the Royal Navy maintained Royal Navy Dockyards around the world. Dockyards of the Royal Navy are harbours where ships are
History of the Royal Navy vessels being two s and fifteen s and heavy cruisers. The London Naval Treaty of 1930 deferred new capital ship construction until 1937 and reiterated construction limits on cruisers, destroyers and submarines. As international tensions increased in the mid-1930s the Second London Naval Treaty of 1935 failed to halt the development of a naval arms race and by 1938 treaty limits were effectively ignored. The Navy made a show of force against Mussolini's war in Abyssinia, and operated in China to evacuate British citizens from cities under Japanese attack. The re-armament of the Royal Navy was well under way by