If there is a "war" between the United States and Canada it's going to be extremely short. There would not be a need to conscript anybody for it.
The United States would simply roll tanks and troops across the border, making it to Ottawa in fairly short order. Canada would then surrender, and the Stars and Stripes would be raised across all the provinces and territories. From there, Canada could consider itself officially annexed.
The United States would simply roll tanks and troops across the border, making it to Ottawa in fairly short order. Canada would then surrender, and the Stars and Stripes would be raised across all the provinces and territories. From there, Canada could consider itself officially annexed.