page_title: History of the United States
section_title: War of 1812
hierarchical_section_title: History of the United States / Early years of the republic / War of 1812
caption_attribution_description: English: A map of the historical territorial expansion of the United States of America. Not shown: Guam, Northern Mariana Islands, American Samoa, minor outlying islands, former territories
context_page_description: The prehistory of the United States started with the arrival of Native Americans before 15,000 BC. Numerous indigenous cultures formed, and many disappeared before 1500. The arrival of Christopher Columbus in the year 1492 started the European colonization of the Americas. Most colonies were formed after 1600, and the early records and writings of John Winthrop make the United States the first nation whose most distant origins are fully recorded. By the 1760s, the thirteen British colonies contained 2.5 million people along the Atlantic Coast east of the Appalachian Mountains. After defeating France, the British government imposed a series of taxes, including the Stamp Act of 1765, rejecting the colonists' constitutional argument that new taxes needed their approval. Resistance to these taxes, especially the Boston Tea Party in 1773, led to Parliament issuing punitive laws designed to end self-government in Massachusetts. Armed conflict began in 1775. In 1776, in Philadelphia, the Second Continental Congress declared the independence of the colonies as the United States.
context_section_description: Thomas Jefferson defeated Adams for the presidency in the 1800 election. 
  Americans were increasingly angry at the British violation of American ships' neutral rights to hurt France, the impressment (seizure) of 10,000 American sailors needed by the Royal Navy to fight Napoleon, and British support for hostile Indians attacking American settlers in the Midwest. They may also have desired to annex all or part of British North America. Despite strong opposition from the Northeast, especially from Federalists who did not want to disrupt trade with Britain, Congress declared war on June 18, 1812.
  The war was frustrating for both sides. Both sides tried to invade the other and were repulsed. The American high command remained incompetent until the last year. The American militia proved ineffective because the soldiers were reluctant to leave home and efforts to invade Canada repeatedly failed. The British blockade ruined American commerce, bankrupted the Treasury, and further angered New Englanders, who smuggled supplies to Britain. The Americans under General William Henry Harrison finally gained naval control of Lake Erie and defeated the Indians under Tecumseh in Canada, while Andrew Jackson ended the Indian threat in the Southeast. The Indian threat to expansion into the Midwest was permanently ended. The British invaded and occupied much of Maine.
  The British raided and burned Washington, but were repelled at Baltimore in 1814 – where the "Star Spangled Banner" was written to celebrate the American success. In upstate New York a major British invasion of New York State was turned back. Finally in early 1815 Andrew Jackson decisively defeated a major British invasion at the Battle of New Orleans, making him the most famous war hero.
  With Napoleon (apparently) gone, the causes of the war had evaporated and both sides agreed to a peace that left the prewar boundaries intact. Americans claimed victory on February 18, 1815 as news came almost simultaneously of Jackson's victory of New Orleans and the peace treaty that left the prewar boundaries in place. Americans swelled with pride at success in the "second war of independence"; the naysayers of the antiwar Federalist Party were put to shame and the party never recovered. The Indians were the big losers; they never gained the independent nationhood Britain had promised and no longer posed a serious threat as settlers poured into the Midwest.
caption: Territorial expansion; Louisiana Purchase in white.
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