Earlier quoted context omitted.
I think his point wasn’t to have a political class with military experience, but rather a political class that are personally at risk from their policies and decisions.
That's called a warlord. Or if you want to be romantic about it: a knight, or samurai. There are many periods of history where warlords ruled by shear might and took to the battlefields personally. If you rule by military strength, then it is customary to also take to the battlefield. That's why the samurai class, knights, etc. etc. were on the battlefield. They were expected to personally enter battle as part of the…
Maybe they'll think twice about sending snuffy off to die if they or theirs will get dead.