Enigmas, Shmigmas: Polish Ciphers and the Miracle on the Vistula
Also relevant:
en.wikipedia.org/wiki/Polish_Enigma_double
www.youtube.com/watch?v=9P5Ka5PwXXg
Mods, be merciful I realize this is somewhat low effort and I suck at memeing, but I love this community for the history I learn here.
Spoiler:
spoilerGet closer to Poland, we’ll fuck you