[Smokin' Joe]

Of course, the UCMJ has more than enough provisions to dissuade officers from butting heads with the President.

Like it or not, Duh-1 is the Commander in Chief, and he can demand their resignations any time. If they don't have the job, they can't in any way mitigate the effects of policy dictums.

[SampleMan]

In such situations, resignation is the only moral option. Their mass resignation would have more impact than any mitigation they might advance.