"It was ascertained, that the Spanish force in Florida was inadequate for the protection even of the Spanish territory itself, against this mingled horde of lawless Indians and negroes; and although their devastations were committed within the limits of the United States, they immediately sought refuge within the Florida line, and there only were to be overtaken. The necessity of crossing the line was indispensable; for it was from beyond the line that the Indians made their murderous incursions within that of the United State. It was there that they had their abode; and the territory belonged in fact to them, although within the borders of the Spanish jurisdiction. There it was that the American commander met the principal resistance from them; there it was that were found the still bleeding scalps of our citizens, freshly butchered by them; there it was that he released the only woman who had been suffered to survive the massacre of the party under lieutenant Scott."
John Quincy Adams?

ETHAN ALLEN HITCHCOCK  https://books.google.com/books?id=7AQ5nT1ozrQC&pg=PA108&lpg=PA108&dq=fort+%22mobile+point%22+1818&source=bl&ots=5C1b-2fJ2X&sig=a7sRt2QYpHjca5BkSEJcL_Saz0g&hl=en&sa=X&ved=0ahUKEwjgxu_RpZbOAhUHySYKHaLgA80Q6AEIODAG#v=onepage&q=fort%20%22mobile%20point%22%201818&f=false