All the talk of military lockdown is misplaced I think.
We have just 135,000 police after tory cuts and at 95,000 active personnel, a smaller military than at any time since waterloo for the same reason.
Yes, they are armed, but there are two issues with that. First, asking your armed forces to fire on your own civilians is pretty much game over for a society. And if they ever did, it changes the rules forever. There are 65 million people, guns or not they are not winning that fight.
Johnson will, if he is sensible, avoid testing any of that at all costs.