The correct answer is Jackson's attacks showed how weak Spain was in Florida.
Jackson's attack in 1818 to hunt the Red Sticks resulted in a major international affair and diplomacy problem, once the invaded land was Spanish territory and there was no war declarations or threats.
The resulting backlash of the invasion actually turned Andrew Jackson into a hero and resulted in the 1919 Adams-Onís Treaty, in which Spain ceded the Florida region to the United States of America. This resolution was only made possible because the although the 1818 invasion angered the Spanish, they had no means to retaliate or take back the seized land, especially by brute force. Hence the only option Spain had was to sign the treaty and cede the land for the USA, exposing the fragility and inability of the Spanish to defend the land. With the treaty, Spain ceded their last piece of land in the Americas.
