Yes, the United States used force to acquire Florida. The conflicts were known as the Seminole wars and they were as a result of the rebellious and unilateral actions taken by General Andrew Jackson and his decision to obtain Spanish Florida for the betterment of the United States. General Andrew Jackson had a disdain for the Native Americans that opposed United States interests as he believed that the aboriginal communities in Florida needed to be controlled by, and forced to rely on, the United States. He therefore, launched an invasion Florida that ultimately paved the way for Florida’s future annexation by the United States. The use of the pretext of neutralizing the Seminole threat to the United States interests across its southern frontier ultimately allowed the United States to annex Florida and expand its domain, much to the detriment of the Seminole community. The United States therefore, acquired Florida land in 1821.