What are some examples of highly specialized units during WWII, similar to the Navajo Code Talkers and the Ghost Army, and what impact did they have on the war?

by crumblin_erb

Hi r/AskHistorians,

I was curious if anyone here knew about any interesting examples of units that had a very specific or highly specialized role during WWII. I've heard about the Navajo Code Talkers and the Ghost Army (both of which are fascinating if anyone hasn't heard of them!), but I didn't know if there were any others that might be a little less well known, yet still had an impact on wartime events.

axearm

/u/Georgy_K_Zhukov had another excellent post on looting but delved into the Monuments Men, who had a very specific or highly specialized role during WWII.

Below is the link to the relevant post. The discussion of Monuments Men starts near the bottom in the section 'To the Victor...')

https://www.reddit.com/r/AskHistorians/comments/9ihvkv/how_prevalent_was_looting_by_us_troops_during_wwii/e6k5re8/