Cruisers
Starting around the time that steam cruisers became popular in the 1870s, the Royal Navy tended to organise such ships into groups called Cruiser Squadrons. Squadrons were commanded by a rear-admiral whose title was given as Flag Officer Cruiser Squadron n, or CSn for short (e.g. the officer commanding the 3rd Cruiser Squadron would be CS3).
During peacetime the grouping was primarily for administrative purposes, but during war the whole squadron tended to be operated as a unified fighting unit and such units would train in this formation during peace. In the main fighting fleets (Home Fleet and Mediterranean Fleet) members of a given squadron were normally of the same or similar classes. The use of Cruiser Squadrons died out as the number of such ships decreased following World War II.
- 1st Cruiser Squadron-1939 Mediterranean Fleet, Second World War and afterwards – Mountbatten?
- 2nd Cruiser Squadron -1914 Grand Fleet, HMS Minotaur, HMS Hampshire, HMS Shannon, and HMS Cochrane. 1932 Home Fleet in the interwar period. HMS Dorsetshire, HMS York and HMS Exeter in 1932.
- 3rd Cruiser Squadron – Mediterranean Fleet
- 4th Cruiser Squadron:- 1939 East Indies Station HMS Gloucester, HMS Liverpool, HMS Manchester; 1945 British Pacific Fleet HMS Swiftsure, HMS Argonaut, HMS Black Prince, HMS Euryalus, HMNZS Gambia
- 5th Cruiser Squadron-1939 China Station HMS Cornwall HMS Dorsetshire HMS Kent HMS Birmingham. Post World War II Flag Officer Commanding was for a period an additional appointment for Flag Officer Second in Command Far East Fleet.
- 6th Cruiser Squadron, also known as Mediterranean Cruiser Squadron, (1909–1915), (1925–1942) deployments -1939 South Atlantic Station
- 7th Cruiser Squadron, also known as Cruiser Force C, (1912–1914) deployments -1940 Mediterranean Fleet HMS Gloucester, HMS Neptune, HMS Orion, HMAS Sydney, and HMS Liverpool. On 21 June 1940, Bardia was bombarded by the 7th Cruiser Squadron of the Mediterranean Fleet. The bombardment force consisted of the French battleship Lorraine, British cruisers HMS Orion and HMS Neptune, the Australia cruiser HMAS Sydney, and the destroyers HMS Dainty, Decoy, Hasty, and HMAS Stuart. However the bombardment is reported to have only caused minimal damage.
- 8th Cruiser Squadron, (1912–1914, (1924/25-1942) deployments-1939 West Indies Station
- 9th Cruiser Squadron -also known as Cruiser Force I, (1913–1919), (1940)
- 10th Cruiser Squadron – First World War operated Northern Patrol checking trade routes to Germany
- 11th Cruiser Squadron also known as Cruiser Force B – (1912–1917)
- 12th Cruiser Squadron also known as Cruiser Force G – (1914–1915), (1939–1943)
- 15th Cruiser Squadron, (1940–1946) Components in 1942 Mediterranean Fleet HMS Cleopatra, Arethusa, Dido, Euryalus and Orion
- 18th Cruiser Squadron, (1939–1942). Deployments -1939 Home Fleet. Home Fleet/Nore 1940 – War Diary March–May 1940