[Galadriel55]

There are a couple examples of cavalry being used in WW2 which was critical to securing the outcome. It had a similar role to the German motorized units and saved some maneuvers when there was a shortage of tech. I'd have to do a little history research to find the specific examples though, don't remember off the top of my head. And anyways these would not be German troops, or ones Tolkien would have seen, or the right timing.