The incipit of an item at Bits of News (which might be a blog, or it might be a news site ... can't tell) which folks might want to track down (especially if they can read the original Norwegian article):

Archaeological findings have strengthened notions amongst scholars that quite a few Norwegians, from the farthermost north of Europe, in all likelihood served as soldiers in the Roman legions.

Ancient weaponry, cups and coins all points towards a more extensive cultural exchange between Norway/Scandinavia and the Roman Empire than previously assumed, an assumption, (article in Norwegian only), Professor Heid Gjøstein Resi at the Cultural Historical Museum, at the University of Oslo also seems to agree with.

Yes, I believe Norwegians served in Roman legions," he says, and continues;"We have been able to confirm that artifacts found in old graves in Norway, which at first were believed to have originated elsewhere, do indeed have their origins from the Roman Empire."

In 1895, during the excavation of the grave of a Norwegian warlord, dating back to 200 A.D, buried near the little village of Avaldsnes on the west coast of Norway, scientists found a sword with a silver ornamented scabbard, a silver ornamented shield, bracelets and four gold rings, artifacts and weaponry that indicates very well that this warlord might have served in the Roman legions, according to Professor Lotte Hedeager at the Institute of archeology, Oslo University.