Definitely, blindly following the advice of the military apparatus would be pretty terrible. (It would probably continue the current course of the US further escalating with North Korea and Iran). But, in the context of the video, I don't think that would be a viable scenario for the two candidates. Especially Bernie is more the pacifist type (I don't know too much about Warrens background to say anything about her), so he'd probably only actually follow their advice if he thinks that there is a real danger.