James, I just thought of an appendix you could include in your PDF for cavalry operations in Thailand, Vietnam and some other parts of SE Asia and the Sub-Continent - elephant-mounted forces! Not as easy as horses to obtain, train, care for and feed but imagine the shock value. And it's a damn sight harder to shoot a mahout's mount out from under him than a horse cavalryman's.
Granted, it's a limited geographic area that elephant cavalry could be found in, but there have been a few discussions over the years about campaigns set in SE Asia. Imagine a group of foot or truck mounted infantrymen facing down a troop of the Royal Thai Elephant Cataphract Corps! I'd be fetching my brown trousers.
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 "It is better to be feared than loved" - Nicolo Machiavelli
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