He briefly served in the Second Seminole War .
He briefly was then assigned to garrison duty along the Canada -- US border from late 1837 through 1838 , when he was reassigned to other military posts for the next decade .
He briefly served in the Second Seminole War and was then assigned to garrison duty along the Canada -- US border from late 1837 through 1838 , when he was reassigned to other military posts for the next decade .