Although the Insurrection Act of 1807 has been invoked for a number of occasions throughout history — notably at least eight times during the 1960s civil rights era — it hasn’t yet occurred during a presidential election in the modern era
The US military has never run elections in this Country for any group other than the military.
Did you read the link you posted?
The US military has never run elections in this Country for any group other than the military.