This book sucks, it's full of glaring inaccuracies goes something like it's 2036 and the russians(who else) wants Alberta's oilsands, so they just sort of saunter over the pole and invade Alberta occupying Calgary, Red Deer, Edmonton and Grand Prairie It is so implausible and the geography is so far off point that it's obvious Mr. Clancy did his research on the net without bothering to visit, of course the Americans rescue us because we are utterly hapless and cannot defend ourselves - no mention of the military bases here, no mention of cold lake airbase, nor suffield weapons range- there is a particularly idiotic tangent to this novel about a nuke in both edmonton and calgary that they will set off and contaminate the oilsands making it unusable (it's buried under 30 ft of overburden 350 miles from edmonton) gotta be one helluva nuke. This is the last novel I buy from this nitwit.