system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Where do nicknames for enemy soldiers come from?

In the US the bad guys are "Charlie" in the UK they are "Jerry" I assume that other countries have similar names for enemy troops. Where do the names come from?
gpt
>In the US the bad guys are "Charlie"

No they aren't. That specifically refers to Vietnamese forces in the Vietnam war. The Vietcong (VC) is "Victor Charlie" in radio speak. That's where the charlie comes from.

>in the UK they are "Jerry"

Again, it refers to just Germans. Not just any aggressor. Jerry is just an abbreviation of German.