If an army consists of citizen soldiers then the army will only be used to defend ourselves. A professionally staffed army is mercenary in nature and over time is staffed and run by people inimical to the freedoms of the average citizen. A quick referal to a book the rise and fall of the roman empire will indicate when a vital early rome that required all citizens to fight abdicated that to mercenary armies they collapsed into decay as the mercenaries were not loathe to attack the citizenry. Go back to sleep.
thanx,
bill