New electronic forms of reconnaissance emerged as a sub-type of aerial reconnaissance during World War II.
Sources
- Aerial reconnaissance in World War II (en.wikipedia.org)
- https://warhistory.org/@msw/article/the-origins-of-aerial-reconnaissance-ii (warhistory.org)
- https://apps.dtic.mil/sti/tr/pdf/ADA460023.pdf (apps.dtic.mil)
- https://data.isiscb.org/isis/citation/CBB900618766/ (data.isiscb.org)
- https://arxiv.org/pdf/2201.02590 (arxiv.org)
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