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The real threat to Canadian sovereignty is ourselves if we fail in our duties to live up to our mutual defence commitments with our friendly neighbours; If we do not nourish our relationships with our like minded friendly neighbours; If we strip our military of the most basic capabilities to monitor our borders and be first on site to defend them before our friends show up to help.
We do not need nuclear weapons unless we wish to forgo our defensive alliances. If we wish to rely on alliances like NATO to ensure our defense, then we must retain a force that is able to contribute in such a way as to honour the spirit and letter of the accord, so that we can count on our partners standing with us in our own time of need. That does mean sending troops to unpopular wars. Remember WWII for the US didn't start until 1941, because the US people couldn't be convinced that it was their problem, even though the military and government knew better. The value of our alliance system to us is in our allies perception of our contribution, if we are viewed as not doing our part, why should they bleed for us in turn? If we wish to go our own way, then we need a military capable of handling our entire defence unaided, and we would require a nuclear deterrent, given two neighbors so vastly more powerful than ourselves.
China is the real threat, it has visions of grandeur in the Pacific Rim, and of its "rightful place in the world and history". Though it is not a match for the US NOW, take a look at how the Japanese are reacting. They are taking China very seriously and changing their constitution likewise. We should take China very seriously as well.
WWI began because Germany decided it needed to find "Its place in the sun", and because its leaders believed their problems could only be aaddressedwith "Blood and Iron" (quotes attributed to Otto Von Bismark, the German prewar Chancellor). China too believes it is destined to become a true superpower. Just today it formally ended prison without trial. Why? In the words of the Chinese leaders, this was done to end the European Unions embargo on sales of modern military hardware (especially fighters). They are building a real fleet for power projection, and seek the air assets required to neutralize the US Pacific Fleet threat. Their antiquated armour is now being modernized, at a cost that is staggering even for an economy as huge as China's. Given access to modern technology, and experience in using it, equipped with the largest industrial capacity on earth, with manpower resources to scale, a desperate need for space and resources, and a long history of conquest, no democratic tradition, and a leadership willing to accept staggering casualties for minimal objectives, does any one else see a danger?
Blue Max.