One of the many problems with an all-volunteer military is that if your society has a sufficient density of religious zealots with deep-seated animus for those outside of their personal tribal affiliation and dreams of a glorious afterlife, those folks end up taking a disproportionate share of your military leadership.
One of the many problems with an all-volunteer military is that if your society has a sufficient density of religious zealots with deep-seated animus for those outside of their personal tribal affiliation and dreams of a glorious afterlife, those folks end up taking a disproportionate share of your military leadership.