Go read book 4 and 6 of the commentaries and you'll find the answer. The Suebi (or Suevi) are mentioned in both, and I'm pretty sure (contrary to your bizarre assertion) that he wasn't crossing the Rhine to fight a "Celtic" version of the Suebi. That's all the time you get from me right now, and it's not even time I'm spending on you. It's for other people reading this who might stumble into this thread and inadvertently come to conclusion your points have validity.
I was wrong about the bridges. You remain wrong about Caesars actual foes.
Again, what is my obvious agenda?