Always remember the politicians and VSOs in the Ivory Towers saying that we would have 10 years warning of an new Russian threat, I think it was a key assumption in SDSR 10; one wonders when the 10-year clock started ticking? 2010? 2009? 2005?
Thats if the clocks officially ticking at all. And define what a threat is, full all out invasion, part of etc.
Its a fine line judging what may just be innocent upgrading and modernization of decrepit military forces, and a build up in a prelude to world domination
.
There are significant resources in various military who try to make that judgment. Now going from history, I'm not sure we have a good track record in such things.
Recent events, appear to indicate that some time in the future we might be in a little bit of dodo if we don't pull our heads out of our butts.