Maybe, maybe not. I don't know yet.
It was just an idea that I had.
Ethoses are like the sliders in eu3 if you ask me, witch is why I'm getting slightly annoyed about it. I don't think any empire would ever go "no we are not pacifist but we aren't militarist either" what would they be then???
The militarism slider means that your population are far more accepting of wars and that warfare plays a large part of your political climate. A population that has just a single point in militarism would be accepting of the military making every decision on their behalf in some way or another.
To give an example, the Krogan of Mass Effect would be fanatically militarist, the Turians Militarist, both of these are demonstrated by both being ruled by military governments. The Klingons from Star Trek too. Meanwhile, the Systems Alliance of Mass Effect is arguable neutral on the matter - while we are constantly seeing military personnel, this is caused by the fact that offworld colonies make up a very small of the human population (numbering in the tens of millions seemingly) and that the extra planetary organization is mostly military following the first contact war - at home it's a representative democracy and the military has no special role, and most humans never enlist.
Edit: in example, the Turians were confused why humans thought extensive orbital bombardment was wrong, since every person of a certain age has to enlist in the military, they have little concept of "civillians".
Humanity from Starship Troopers would be another example of a militarist human government (military republic).
On the more pacifist scale, you could have Humans from Star Trek: TNG, which are extremely wary of entering actual war, but keep a substantial fleet in case it becomes necessary.