I’m not sure about the headline on this story on FiveThirtyEight. The article shows military voters are still staunchly Republican, even though the one veteran quoted prominently is unenthusiastic about both Clinton and Trump.
That veteran opposes Obama because Obama has cut military spending drastically — which is one of the best things Obama has done. Sure, the military is the most important thing the government does, but we don’t need a Cold War sized military when the threats against us aren’t Cold War magnitude. Every dollar the government spends on military is a dollar not being spent on something else, and increases military domination over civilian society.