Canuck,
  I was speaking to the reasoning behind my joining the Canadian Forces, was wasn't referencing the Oath from the QR&O's. When asked why you joined do you simply recite the Oath or do you have personal reasons for joining?  Still, enforcing the Constitution is implied in the Oath. As per the QR&O's, "I ......... (full name), do swear (or for a solemn affirmation, "solemnly affirm") that I will be faithful and bear true allegiance to Her Majesty, Queen Elizabeth the Second, Queen of Canada, Her heirs and successors according to law. So help me God." Those laws are found primarily in the Canadian Constitution so "true allegiance to Her Majesty" includes upholding the Constitution.  I have respected your position here with respect you your views concerning Khadr and haven't questions the authenticity of your service, so I'd appreciate if if you don't question mind, even indirectly.  Thanks