08-12-2010, 04:52 AM
I agree with Nathan's assessment. I am working on a biography of Germanicus and have used the same references he quoted. It is, however, almost impossible to determine the full complement of auxiliary units and "German bands" (Tacitus, Annals, 1.56) he took with him though among the treaty allies were likely Batavi, Frisii, Chauci and Cananefates.