>In order to prevent the military from seizing control of the country, the US decided that it must always have civilian oversight of the military. It is a law that only a civilian can be the secretary of defense.
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>Perhaps I should have been more clear. I realize how difficult is for you to understand things. What I meant is that IMHO we need someone with military EXPERIENCE in that position.
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>Mattis will be our next secretary of state as congress will give him a (legal) waiver. Anyway, he IS a civilian - he retired from the military in 2013....

Right - but the law says he must be a civilian for longer than he has been. And if you're so big on wanting people with experience I find it rather ironic that you voted for Trump - who has zero experience.