20th Cruiser Squadron

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20th Cruiser Squadron
Ensign of the Royal Navy animated.gif
ActiveApril 1940
DisbandedJune 1940
CountryFlag United Kingdom of Great Britain and Northern Ireland.gif United Kingdom
AllegianceBritish Empire
BranchNaval Ensign of the United Kingdom.svg Royal Navy
Part ofHome Fleet
TitleRear-Admiral Commanding, 20th Cruiser Squadron
FirstRear-Admiral John Guy Protheroe Vivian
LastRear-Admiral John Guy Protheroe Vivian

The 20th Cruiser Squadron or Twentieth Cruiser Squadron was a brief temporary formation of the British Home Fleet consisting of anti aircraft cruisers of the Royal Navy.[1] It took part in the Battle for Norway from April to June 1940.[2]


The 20th Cruiser Squadron was formed in Spring 1940 for a specific operation during the Battle for Norway. It consisted of six C Class anti aircraft including; HMS Cairo, Carlisle, Calcutta, Coventry, Curacao and Curlew.[3] The squadron had been given the task of defending the anchorages of Aandalsnes and Namos.[4]

In Command

Rear-Admiral Commanding, 20th Cruiser Squadron


Rear-Admiral Commanding, 20th Cruiser Squadron
Rank Flag Name Term
1 Rear-Admiral Rear Admiral command Flag RN from 1864.png John Guy Protheroe Vivian April - June 1940.[6]


  1. Haarr, Geirr (2010). "Appendices". The Battle for Norway: April-June 1940. Barnsley, England.: Seaforth Publishing. p. 401. ISBN 978-1-84832-057-4.
  2. Haar. (2010). The Battle for Norway: April-June 1940.
  3. Haar, (2010). Appendices. p.401.
  4. Dix, Anthony (2014). "21: 'Impossible' the Navy do know the meaning of the word.". The Norway Campaign and the Rise of Churchill 1940. Barnsley, England.: Pen and Sword. p. 144. ISBN 978-1-78340-060-7.
  5. Grehan, John; Mace, Martin (2015). The battle for Norway, 1940-1942. Barnsley, England.: Pen and Sword. p. 76. ISBN 978-1-78346-232-2.
  6. Haar, (2010). Appendices. p.401.