Roman battlefield found deep inside Germany

[caiusbeerquitius]

Why is it so difficult to accept that a Roman punitive expedition reached (at least) this point in Germania's interior?

It is not difficult. However, to accept something means that certain facts are already established. In this case it is impossible to "accept" it, since it is not really clear (yet).

Until now, there has been only one single spearhead, that´s been identified as being of germanic origin. (numbered 522)

Amazing. How did they do that?

So maybe there fought Romans vs. Romans?!

Could also be the case, yes. I think first of all we should wait for clearer evidence.