Feb 12, 2022 · This violent escapade precipitated a miniature diplomatic crisis, with President James Monroe ultimately supporting Jackson and Spanish official Luis de Onís backing off, lest the U.S. take further action and officially seize Florida. An American-led rebellion made Spain's job more difficult Library of Congress/Wikimedia Commons
Acquisition of Florida: Treaty of Adams-Onis (1819) and Transcontinental Treaty (1821) The colonies of East Florida and West Florida remained loyal to the British during the war for American independence, but by the Treaty of Paris in 1783 they returned to Spanish control. After 1783, Americans immigrants moved into West Florida.
In 1898 national attention focused on Florida as the Spanish-American War began. The port city of Tampa served as the primary staging area for U.S. troops bound for the war in Cuba. The arrival of over 30,000 troops, including Lieutenant Colonel Theodore Roosevelt and his Rough Riders cavalry unit, changed Tampa from a small town into a city.
On July 16, the Spaniards agreed to the unconditional surrender of the 23,500 troops around the city. A few days later, Major General Nelson Miles sailed from Guantánamo to Puerto Rico. His forces landed near Ponce and marched to San Juan with virtually no opposition.
The Gadsden Purchase was the only official territorial acquisition during the 1850s. Filibustering tended to encourage local hostility to U.S. expansion and spread international resistance to growing U.S. power. U.S. expansion in the later 1850s was also hindered by domestic sectional tensions over slavery.
By 1820, the United States already extended well beyond its original boundaries. Through the Louisiana Purchase of 1803 and treaties with Spain and Britain, the nation's borders moved west to the Rocky Mountains, north to the 49th parallel, and south to Florida and the Gulf of Mexico.
Jan 31, 2023 · This was first demonstrated by his maneuvering in the President’s attempts to acquire the territory of Florida from the Spanish. Jefferson was distressed with the remarkable bargain he received in the Louisiana Purchase – finalized two years earlier – because he felt the land could be only of minimal use to the rest of the country.