A curious, 24 pgs. document 'Role and effectiveness of signals intelligence during World War II', released by the Australian Signals Directorate (ASD), the "Five Eyes" partner in WW2 and later, released in 2001 and id'd today via a Tweet. It covers many theatres, periods and themes. Link: https://www.asd.gov.au/sites/defaul...ss-of-Signals-Intelligence-in-World-War-2.pdf I expect this is not an Australian document, rather a summary produced after WW2 ended.
