Our military has leaned strongly Republican. By law, active military are constrained from political action. Most retired officers are highly politically aware but strive to be non-partisan, and are often not aligned with either party.
The fact that so many top-ranked former Generals and Admirals have gone on record to speak out against Donald Trump underscores the gravity of the threat he represents to our democracy and, ultimately, what it means to be American. Below are warnings from a number of these retired, highly respected military commanders.
https://medium.com/@rmoore.acorn/u-s-generals-are-raising-the-alarm-d98807702c31