Humans had long settled in places that elephants couldn't survive by 200 years ago. They wouldn't fare better attacking Russia in winter than Napoleon did. I don't know how well they could tolerate winter in Germany, say.
And, echoing other comments here, their close relatives who _could_ tolerate winter outside the tropics were long extinct by this point.
Edit to add: the worst they could do would be raiding parties in the late summer and autumn, eating whole harvests. Landbound pachyderm Vikings?
And, echoing other comments here, their close relatives who _could_ tolerate winter outside the tropics were long extinct by this point.
Edit to add: the worst they could do would be raiding parties in the late summer and autumn, eating whole harvests. Landbound pachyderm Vikings?