Though an army of hundreds in the early middle ages was still a large undertaking.
For the Romans that was just a joke, but for the Anglo-Saxons, that was an Army
The Great Army was much much larger, as the rest of the article and new research indicates. Good point about the Romans, though, after Augustus' reforms the entire Roman army was 280,000 strong (half auxiliaries) on paper, lower numbers in reality, to cover the whole Empire's frontiers and, at its peak, 50,000,000 residents.