These military positions require "not understanding" as a prerequisite. Do you think you'd be put in charge of something like the war in Vietnam, if you didn't

These military positions require "not understanding" as a prerequisite. Do you think you'd be put in charge of something like the war in Vietnam, if you didn't tell the president you could win the war for them? You'd just have been sidelined or fired if you gave a realistic opinion. Which is not unique to the military, of course. Have fun letting the CEO know their sales goals are unobtainable.