Interesting article - 'New Yorker', right?

The course of the war was varied, and that reflected situations elsewhere. The land war actually began around 1810, with British arming of Native tribes in the American western territories and their encouragement of raids to discourage settlement expansion. Not all raids were directly instigated by the British, of course, and American settlers certainly retaliated in kind. This likely was the reason for the first invasion of Canada, a militia strike toward Windsor, Ontario in 1812, which was repulsed by British regulars, local forces and allied Indian tribes under Tecumseh who then invaded the US and captured Detroit. It is hard for us today to realize that Michigan and Ontario were the far frontier in 1812.

One direct result of the war was the realization that the US could not depend on militia, who were generally unequipped, untrained and unwilling, and the expansion of the regular Army into a viable force.