If anyone hasn't already done so they should read Confound and Destroy - 100 Group and the Bomber Support Campaign by Martin Streetly:
ISBN 0354 01180 4.
Chapter 6 describing Exercise Operation Post Mortem, a series of Bomber Command exercises between 25 Jun - 7 Jul 1945 aimed at assessing the effectiveness of countermeasures and tactics against the Luftwaffe air defence organisation, is particularly interesting. You may then wish to take a look at
RAF Historical Society Journal No. 28 to see how quickly some of the lessons learned were forgotten.
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