(Sorry if my english is not that good on this post. )

I think there is no real need for Clone Troopers or soldiers, or invaders, in the story to call the war the Clone War.

Could have other options (?), I'm just thinking out loud:

- Good Palpatine secretely replaced by evil Palpatine clone (who is the apprentice of a Dark Lord of the Sith, but kills him when he has a chance, so he become THE dark Lord himself). So the expression "clone war" is known only by those who found out that Palpatine is not the real Palpatine.

- The Jedi fighting the Sith to prevent them to get their hands on cloning technology.

Mmm, I'm not too proud myself of these ideas, but it's hard to come with something really interesting with this Clone stuff...

To be really fair, in french, the "Clone Wars" was translate as the "black war" "la guerre noire", so as a child I never grew up with this Clone concept until I saw the movie with original audio! And frankly I did not like it much.