According to nearly a dozen retired officers and current military lawyers, as well as scholars who teach at West Point and Annapolis, an intense if quiet debate is underway inside the U.S. military community about what orders it would be obliged to obey if President-elect Donald Trump decides to follow through on his previous warnings that he might deploy troops against what he deems domestic threats, including political enemies, dissenters and immigrants.
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Other way around, I believe. Pertinax is commonly pointed to as one of the best potential Emperors, and I think Kyrgizion is saying that Pertinax is one of the few good ones that they killed, not one of the many terrible ones.
STTL, Emperor Pertinax!