It's a commentary on the geopolitical relationship between the United States and Canada.
Canada prides itself on having a relatively peaceful history and not having to declare war to gain independence. They have only had sovereignty for 30 years.
While every other nation is raping one another, Canada is gently nestled in America's grasp. It's a beautiful land full of rich resources, but nobody wants to touch it out because they fear pissing off big brother America.
To give you an idea of the nature of the situation, take a look at their boarder. Two of the largest countries in the world, and yet their largest boundaries are purely fictional, where nearly every other boundary int he world is the result of turmoil and the fight for resources. The only other place you see boarders like this are with the relationships between states and unions.
Long story short?
Canada has the hots for America. She wants America to rape and pillage her virgin lands, but she wants to play the role of the victim.
The day that America invades, the rest of the world will be shocked. But the truth is that Canada will get what she's wanted all along. To be America's little slut.