There's an impeachment process. Creating a separate, faster one for constitutional violations is just inviting trouble.
I think it is always interesting when the curtain gets pulled back to reveal how all of our political systems and norms simply overlay the fact that power is the ultimate law of the land.
The sticky part comes in when the venue for determining the legality of the order often then becomes one's own court-martial and resulting appeals. I'm not sure how much case law there is on the subject.
The law is arguably not what's written, but what actually happens, and analyzed that way our laws about war crime are complicated.
It's less a legal provision than a consequence of humans being the interface of the law. So while there is, in theory, a duty to disobey, there is also a presumption of lawfulness of orders [1][2].
[1] https://ucmjdefense.com/resources/military-offenses/the-lawf...
[2] https://warontherocks.com/2017/07/when-can-a-soldier-disobey...
> It is a defense to any offense that the accused was acting pursuant to orders unless the accused knew the orders to be unlawful or a person of ordinary sense and understanding would have known the orders to be unlawful.
So for those non-military reading, while it's almost always a bad idea to try to sea-lawyer your way out (though some court challenges have worked), you also are expected to use "ordinary sense and understanding" to reject orders like "go massacre those clearly unarmed noncombatants." But if it's not as cartoonishly obvious as that, there's a good chance you will have to defend your actions at a court-martial, and the legality of the order will be down to the interpretation of the presiding military judge and appellate courts.
Interestingly the oath for enlisted does include a section on obeying the President, subject to the military Code.
And while on the face of it, this video would appear to jump headlong into a hot button political discussion... it's actually very calm, collected, and appears to be striving to provide an objective analysis from a military perspective about just these issues.
https://www.military.com/daily-news/2024/07/12/what-happens-...
Violence is a major form of power, but so are utility and persuasion.
You can persuade or pay people to things that you can't threaten or force them into.
Debt exists because of (the threat of) violence. Money exists because of debt (.. is in fact debt). Modern society is based on our monetary system.