As much as I understand us military, they are required to follow all orders (like any military, really) except orders that are illegal.

So, if Trump ordered an invasion of Greenland, the military should refuse that order, unless that order also comes with an act of congress declaring war on Greenland. However, Nixon bombed Cambodia without a declaration of war, so I don’t know.

If they have any balls left, they’d just release it anyway and have Biden pardon them.

I don’t think they’ll do it, but they should.