How is it that stealth (sic) is not as important for defensive use? Surely, if the enemy can see you they can kill you regardless of whether you are operating defensively or offensively.For Canada:
Dump the F-35 immediately in favour of the JAS 39 Gripen NG. A great defensive plane for North America with a very low price (and maintenance) compared to the F-35. Stealth not as important for domestic use. The Gripen has a good range, weapons payload (same weapons as the F-18 so no need to purchase new), can supercruise, and has amazing turnaround time.
As for the NATO and UN obligations, the Gripen will do fine there too. We won't be crashing the door down in the first 48 hours of the next war but our planes will be fine to fly after that, kind of like the F-18s are doing now. I believe Canada should alter its aims internationally anyway so this fits my vision acceptably. Peace keeping operations (with proper mandate and equipment to avoid another Rwanda), and disaster relief are what Canada should be focusing on.
Consider this - we have won little respect in the eyes of our enemies and peers if after the past 10 years our closest allies are questioning our northern borders and old enemies are starting to test our defenses again. Focusing on defense, and becoming experts doing one or two things (disaster relief, peace keeping) will give proper focus to procurement and not allow a much of special interests in military, government, and commercial enterprise to give us a military that does many things but none of them well.
With the cost savings, we'll be able to defend the country, meet international obligations, and have the money to by the 5.5 or 6th generation plane while everyone who bought the F-35 is paying out the nose for the next three decades.
Stealth technology isn't worth the extra 25 billion dollars.
Also, how do you defend the country if you configure your military to be experts in disaster relief and peacekeeping? If you really want to focus on that aspect, disband the defence forces entirely and save still more money - then you can bolster your police force and relief forces.