b) Acquire Florida

The Adams-Onis Treaty, also known as the Transcontinental Treaty, signed in 1819, was a key diplomatic agreement between the United States and Spain, with the central objective of acquiring Florida for the U.S. Negotiated by Secretary of State John Quincy Adams and Spanish minister Luis de Onís, the treaty ceded Florida to the U.S. and defined the boundary between U.S. and Spanish territories in North America. This treaty was significant in the expansion of the United States, facilitating its growth and consolidation as a nation. It also demonstrated the increasing diplomatic and geopolitical influence of the U.S. in the early 19th century.