We have plans drawn up and ready to invade Canada - why would Russia be any different?
That’s true .... but from a cold start we couldn’t have heavy armor deep inside Canada by tommorrow morning. These units just don’t move from the motor pool and the barracks like that. Russia was fully mobilized and ready to move before Georgia acted. How were they so prepared to have force mobilized and in the field awaiting the move order so they could be in combat within 12 or so hours?
It’s one thing to have a plan ... it’s another thing to have the units ready to move at a moments notice. And nations just don;t keep their forces on hair trigger for grins.