Is the US ripe for a coup?

[Anomalocaris]

To be blunt, while the military talks big of moral courage, the structure of the military inevitably tend to promote people of physical courage but moral cowardice.  General and admirals would only act against orders and risk being on the losing side of a struggle if they feel their own career or the interests of their own social class is otherwise under severe threat.

In all other circumstances they are likely to act in a way that best protect their own continued career prospects and the safety of the social class with whom they identify.

Unless an officer aims to seize the supreme power himself, or has been promised extravagant career rewards out of all proportion to his actual capabilities, most offices will chose obey orders from long standing establisment so as to protect his own career.

So I don't think the US military would likely act against Trump's orders unless they perceive the order is likely to result in nuclear retaliation against the US and this put their own social class in personal survival jeopardy, or the order would result in such civil strife as to also put members of their own social class in persobal survival jeopardy.