In 2017, I posted a set piece based on “Richard III” in which the Trump cabinet pledges allegiance to the omnipotent and omniscient president. When Mattis doesn’t show enough deference to the great man, he is summarily executed, and his head is put on a stick.
With Trump, satire can be prophecy. He demanded that all present pledge allegiance to his awesome self at last week’s pseudo-convention. I’m sure most of them did it, too.
If and when Pete Hegseth starts requiring all members of the military to swear allegiance to Trump personally instead of to the Constitution, you will know the process of turning them into a right-wing militia is nearly complete.