The DoD is the ONLY and minority part of the federal work force where traditionally you had a majority of conservatives. In 2004 when they did surveys, as much as 75% voted Republican.
That said, there is no issue if the DOJ is liberal, if the State Department is liberal, if the department of HHS, Education, Interior, are all liberal...
But if the DoD leans conservative, that today will be defined as a threat or problem because that is how communists/socialists think. They are very diverse, tolerant, and inclusive folks, as long as you repeat their narrative, otherwise you are a bad person and get some sort of label stamped on your forehead.
I know a number of officers that are disguised Lefties.
You just have to find out who their [not the same last name] spouses are.
Jocelyn Benson.
Rosa Brooks.