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![_HistoryNerd Avatar](https://lunarcrush.com/gi/w:24/cr:twitter::1518284153661186048.png) History Nerd [@_HistoryNerd](/creator/twitter/_HistoryNerd) on x 237K followers
Created: 2025-07-18 17:04:10 UTC

While Luftwaffe and army messages were being decrypted, the naval Enigma posed a greater challenge.

German U-boats were decimating Allied convoys in the Atlantic, threatening Britain’s lifeline of supplies.


XXXXX engagements

![Engagements Line Chart](https://lunarcrush.com/gi/w:600/p:tweet::1946254683057586300/c:line.svg)

**Related Topics**
[german](/topic/german)

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