[afc wimbledon]

Of course this hypothetical attack on Canada would have to come from presumably Russia, Greenland or China. Discounting Greenland as unlikley that leaves you with our 40 or 50 operational fighters facing 300 odd enemy fighters an equal number of fighter bombers as well.

Stealth or otherwise we be getting our arses handed to us on a plate, even if we knew they were coming and got every fighter up, and none of them were shot down, the first wave of an assualt would still take out every airfield capable of landing them after.