Definitely! At least one of Caesar's camps was attacked by Gauls, though that *might* have been a "winter camp", more substantial than a marching camp. Legio IX was attacked in their marching camp during Agricola's campaign into Caledonia, as I recall. And there was some savage fighting along the ramparts during one of the battles of Cremona in the Year of Four Emperors.
Likes: Matthew Amt