A military in a democratic, sovereign nation should have oversight from civilian authority. If people knew that their sons and daughters were effectively raiding another country as a belligerent force - why did they not stop it. The fear comes not in that they didn't, but that they couldn't
Human nature should be feared, especially when you have a loose cannon firing at will, and only grateful that the barrel is facing away from you. If it were to turn towards you, how do would you stop it?
We never truly learn from history as much as we think we do.