Which animal gave ancient armies the greatest strategic edge? Do certain ones still have use in modern military tactics? Strider ranks the most elite non-human soldiers of the past, present and hopefully not future. 

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Sources: livescience.com ‘Beasts in Battle: 15 Amazing Animal Recruits in War’ by Tom Metcalfe and Jeremy Hsu 2017, quora.com, wikipedia.com, history.com, hubpages.com, julieandboris.com