Causes of the War of 1812
At the outset of the 19th century, Great Britain was locked in a long and bitter conflict with Napoleon Bonaparte’s France. In an attempt to cut off supplies from reaching the enemy, both sides attempted to block the United States from trading with the other. In 1807, Britain passed the Orders in Council, which required neutral countries to obtain a license from its authorities before trading with France or French colonies. The Royal Navy also outraged Americans by its practice of impressment, or removing seamen from U.S. merchant vessels and forcing them to serve on behalf of the British.
In 1809, the U.S. Congress repealed Thomas Jefferson’s unpopular Embargo Act, which by restricting trade had hurt Americans more than either Britain or France. Its replacement, the Non-Intercourse Act, specifically prohibited trade with Britain and France. It also proved ineffective, and in turn was replaced with a May 1810 bill stating that if either power dropped trade restrictions against the United States, Congress would in turn resume non-intercourse with the opposing power.
After Napoleon hinted he would stop restrictions, President James Madison blocked all trade with Britain that November. Meanwhile, new members of Congress elected that year—led by Henry Clay and John C. Calhoun—had begun to agitate for war, based on their indignation over British violations of maritime rights as well as Britain’s encouragement of Native American hostility against American westward expansion.
Did you know?
The War of 1812 produced a new generation of great American generals, including Andrew Jackson, Jacob Brown and Winfield Scott, and helped propel no fewer than four men to the presidency: Jackson, John Quincy Adams, James Monroe and William Henry Harrison.
The War of 1812 Breaks Out
In the fall of 1811, Indiana’s territorial governor William Henry Harrison led U.S. troops to victory in the Battle of Tippecanoe. The defeat convinced many Indians in the Northwest Territory (including the celebrated Shawnee chief Tecumseh) that they needed British support to prevent American settlers from pushing them further out of their lands.
Meanwhile, by late 1811 the so-called “War Hawks” in Congress were putting more and more pressure on Madison, and on June 18, 1812, the president signed a declaration of war against Britain. Though Congress ultimately voted for war, both House and Senate were bitterly divided on the issue. Most Western and Southern congressmen supported war, while Federalists (especially New Englanders who relied heavily on trade with Britain) accused war advocates of using the excuse of maritime rights to promote their expansionist agenda.
In order to strike at Great Britain, U.S. forces almost immediately attacked Canada, which was then a British colony. American officials were overly optimistic about the invasion’s success, especially given how underprepared U.S. troops were at the time. On the other side, they faced a well-managed defense coordinated by Sir Isaac Brock, the British soldier and administrator in charge in Upper Canada (modern Ontario).
On August 16, 1812, the United States suffered a humiliating defeat after Brock and Tecumseh’s forces chased those led by Michigan William Hull across the Canadian border, scaring Hull into surrendering Detroit without any shots fired.
War of 1812: Mixed Results for American Forces
Things looked better for the United States in the West, as Commodore Oliver Hazard Perry’s brilliant success in the Battle of Lake Erie in September 1813 placed the Northwest Territory firmly under American control. Harrison was subsequently able to retake Detroit with a victory in the Battle of Thames (in which Tecumseh was killed). Meanwhile, the U.S. navy had been able to score several victories over the Royal Navy in the early months of the war. With the defeat of Napoleon’s armies in April 1814, however, Britain was able to turn its full attention to the war effort in North America.
As large numbers of troops arrived, British forces raided the Chesapeake Bay and moved in on the U.S. capital, capturing Washington, D.C., on August 24, 1814, and burning government buildings including the Capitol and the White House.
Inspiration for 'The Star Spangled Banner'
On September 11, 1814, at the Battle of Plattsburgh on Lake Champlain in New York, the American navy soundly defeated the British fleet. And on September 13, 1814, Baltimore’s Fort McHenry withstood 25 hours of bombardment by the British Navy.
The following morning, the fort’s soldiers hoisted an enormous American flag, a sight that inspired Francis Scott Key to write a poem that would later be set to music and become known as “The Star-Spangled Banner.” (Set to the tune of an old English drinking song, it would later be adopted as the U.S. national anthem.) British forces subsequently left the Chesapeake Bay and began gathering their efforts for a campaign against New Orleans.