This story is a sequel to A Problem in the North
When Twilight Sparkle learns that Celestia, Luna, and Cadence (not to mention her brother, Shining) gave up the Crystal Empire to land grabbing, tax taking, Canadian ponies, she must find a way to fix the situation. Given her incredible knowledge of politics and Pinkie's keen baking skills, there's no way they'll be defeated by Equestria's northern neighbor!
This story was written for the Canadance is Best Pony group, in a short amount of time, because apparently we "need moar Canadance naow" or something. And I was bored and have writer's block.